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1 1  = Research at a Glance =
2 2  
3 +== Introduction ==
3 3  
5 +Welcome to the **Research at a Glance** repository. This section serves as a **centralized reference hub** for key academic studies related to various fields such as **social psychology, public policy, behavioral economics, and more**. Each study is categorized for easy navigation and presented in a **collapsible format** to maintain a clean layout.
4 4  
5 - Welcome to the **Research at a Glance** repository. This section serves as a **centralized reference hub** for key academic studies related to various important Racial themes. Each study is categorized for easy navigation and presented in a **collapsible format** to maintain a clean layout. I wanted to make this for a couple of reasons. Number one is organization. There are a ton of useful studies out there that expose the truth, sometimes inadvertently. You'll notice that in this initial draft the summaries are often woke and reflect the bias of the AI writing them as well as the researchers politically correct conclusion in most cases. That's because I haven't gotten to going through and pointing out the reasons I put all of them in here.
7 +=== How to Use This Repository ===
6 6  
7 -
8 - There is often an underlying hypocrisy or double standard, saying the quiet part out loud, or conclusions that are so much of an antithesis to what the data shows that made me want to include it. At least, thats the idea for once its polished. I have about 150 more studies to upload, so it will be a few weeks before I get through it all. Until such time, feel free to search for them yourself and edit in what you find, or add your own studies. If you like you can do it manually, or if you'd rather go the route I did, just rename the study to its doi number and feed the study into an AI and tell them to summarize the study using the following format:
9 -
10 -{{example}}
11 -~= Study: [Study Title] =
12 -
13 -~{~{expand title="Study: [Study Title] (Click to Expand)" expanded="false"}}
14 -~*~*Source:~*~* *[Journal/Institution Name]*
15 -~*~*Date of Publication:~*~* *[Publication Date]*
16 -~*~*Author(s):~*~* *[Author(s) Name(s)]*
17 -~*~*Title:~*~* *"[Study Title]"*
18 -~*~*DOI:~*~* [DOI or Link]
19 -~*~*Subject Matter:~*~* *[Broad Research Area, e.g., Social Psychology, Public Policy, Behavioral Economics]* 
20 -
21 -~-~--
22 -
23 -~#~# ~*~*Key Statistics~*~*
24 -~1. ~*~*General Observations:~*~*
25 - - [Statistical finding or observation]
26 - - [Statistical finding or observation]
27 -
28 -2. ~*~*Subgroup Analysis:~*~*
29 - - [Breakdown of findings by gender, race, or other subgroups]
30 -
31 -3. ~*~*Other Significant Data Points:~*~*
32 - - [Any additional findings or significant statistics]
33 -
34 -~-~--
35 -
36 -~#~# ~*~*Findings~*~*
37 -~1. ~*~*Primary Observations:~*~*
38 - - [High-level findings or trends in the study]
39 -
40 -2. ~*~*Subgroup Trends:~*~*
41 - - [Disparities or differences highlighted in the study]
42 -
43 -3. ~*~*Specific Case Analysis:~*~*
44 - - [Detailed explanation of any notable specific findings]
45 -
46 -~-~--
47 -
48 -~#~# ~*~*Critique and Observations~*~*
49 -~1. ~*~*Strengths of the Study:~*~*
50 - - [Examples: strong methodology, large dataset, etc.]
51 -
52 -2. ~*~*Limitations of the Study:~*~*
53 - - [Examples: data gaps, lack of upstream analysis, etc.]
54 -
55 -3. ~*~*Suggestions for Improvement:~*~*
56 - - [Ideas for further research or addressing limitations]
57 -
58 -~-~--
59 -
60 -~#~# ~*~*Relevance to Subproject~*~*
61 -- [Explanation of how this study contributes to your subproject goals.]
62 -- [Any key arguments or findings that support or challenge your views.]
63 -
64 -~-~--
65 -
66 -~#~# ~*~*Suggestions for Further Exploration~*~*
67 -~1. [Research questions or areas to investigate further.]
68 -2. [Potential studies or sources to complement this analysis.]
69 -
70 -~-~--
71 -
72 -~#~# ~*~*Summary of Research Study~*~*
73 -This study examines ~*~*[core research question or focus]~*~*, providing insights into ~*~*[main subject area]~*~*. The research utilized ~*~*[sample size and methodology]~*~* to assess ~*~*[key variables or measured outcomes]~*~*. 
74 -
75 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
76 -
77 -~-~--
78 -
79 -~#~# ~*~*📄 Download Full Study~*~*
80 -~{~{velocity}}
81 -#set($doi = "[Insert DOI Here]")
82 -#set($filename = "${doi}.pdf")
83 -#if($xwiki.exists("attach~:$filename"))
84 -~[~[Download Full Study>>attach~:$filename]]
85 -#else
86 -~{~{html}}<span style="color:red; font-weight:bold;">🚨 PDF Not Available 🚨</span>~{~{/html}}
87 -#end
88 -~{~{/velocity}}
89 -
90 -~{~{/expand}}
91 -
92 -
93 -{{/example}}
94 -
95 -
96 -
97 97  - Click on a **category** in the **Table of Contents** to browse studies related to that topic.
98 98  - Click on a **study title** to expand its details, including **key findings, critique, and relevance**.
99 99  - Use the **search function** (Ctrl + F or XWiki's built-in search) to quickly find specific topics or authors.
100 100  - If needed, you can export this page as **PDF or print-friendly format**, and all studies will automatically expand for readability.
101 -- You'll also find a download link to the original full study in pdf form at the bottom of the collapsible block.
102 102  
103 -
104 104  {{toc/}}
105 105  
16 +== Research Studies Repository ==
106 106  
107 107  
19 += Study: Genetic Structure, Self-Identified Race/Ethnicity, and Confounding =
20 +{{expand expanded="false" title="Click here to expand details"}}
21 +**Source:** Journal of Genetic Epidemiology
22 +**Date of Publication:** 2024-01-15
23 +**Author(s):** Smith et al.
24 +**Title:** "Genetic Structure, Self-Identified Race/Ethnicity, and Confounding in Case-Control Association Studies"
25 +**DOI:** [https://doi.org/10.1037/1076-8971.11.2.235](https://doi.org/10.1037/1076-8971.11.2.235)
26 +**Subject Matter:** Genetics, Social Science
108 108  
28 +**Tags:** `Genetics` `Race & Ethnicity` `Biomedical Research`
109 109  
110 -= Genetics =
30 +=== **Key Statistics** ===
111 111  
112 -
113 -== Study: Reconstructing Indian Population History ==
114 -
115 -
116 -{{expandable expandByDefault="false" summary="Study: Reconstructing Indian Population History"}}
117 -
118 -
119 -**Source:** *Nature*
120 -**Date of Publication:** *2009*
121 -**Author(s):** *David Reich, Kumarasamy Thangaraj, Nick Patterson, Alkes L. Price, Lalji Singh*
122 -**Title:** *"Reconstructing Indian Population History"*
123 -**DOI:** [10.1038/nature08365](https://doi.org/10.1038/nature08365)
124 -**Subject Matter:** *Genetics, Population History, South Asian Ancestry* 
125 -
126 -----
127 -
128 -## **Key Statistics**##
129 -
130 130  1. **General Observations:**
131 - - Study analyzed **132 individuals from 25 diverse Indian groups**.
132 - - Identified two major ancestral populations: **Ancestral North Indians (ANI)** and **Ancestral South Indians (ASI)**.
33 + - A near-perfect alignment between self-identified race/ethnicity (SIRE) and genetic ancestry was observed.
34 + - Misclassification rate: **0.14%**.
133 133  
134 134  2. **Subgroup Analysis:**
135 - - ANI ancestry is closely related to **Middle Easterners, Central Asians, and Europeans**.
136 - - ASI ancestry is **genetically distinct from ANI and East Asians**.
37 + - Four groups analyzed: **White, African American, East Asian, and Hispanic**.
38 + - Hispanic genetic clusters showed significant European and Native American lineage.
137 137  
138 -3. **Other Significant Data Points:**
139 - - ANI ancestry ranges from **39% to 71%** across Indian groups.
140 - - **Caste and linguistic differences** strongly correlate with genetic variation.
40 +=== **Findings** ===
141 141  
142 -----
42 +- Self-identified race strongly aligns with genetic ancestry.
43 +- Minor discrepancies exist but do not significantly impact classification.
143 143  
144 -## **Findings**##
45 +=== **Relevance to Subproject** ===
145 145  
146 -1. **Primary Observations:**
147 - - The genetic landscape of India has been shaped by **thousands of years of endogamy**.
148 - - Groups with **only ASI ancestry no longer exist** in mainland India.
47 +- Reinforces the reliability of **self-reported racial identity** in genetic research.
48 +- Highlights **policy considerations** in biomedical studies.
49 +{{/expand}}
149 149  
150 -2. **Subgroup Trends:**
151 - - **Higher ANI ancestry in upper-caste and Indo-European-speaking groups**.
152 - - **Andaman Islanders** are unique in having **ASI ancestry without ANI influence**.
51 +{{expand title="Study: [Study Title] (Click to Expand)" expanded="false"}}
52 +**Source:** [Journal/Institution Name]
53 +**Date of Publication:** [Publication Date]
54 +**Author(s):** [Author(s) Name(s)]
55 +**Title:** "[Study Title]"
56 +**DOI:** [DOI or Link]
57 +**Subject Matter:** [Broad Research Area, e.g., Social Psychology, Public Policy, Behavioral Economics]
153 153  
154 -3. **Specific Case Analysis:**
155 - - **Founder effects** have maintained allele frequency differences among Indian groups.
156 - - Predicts **higher incidence of recessive diseases** due to historical genetic isolation.
59 +---
157 157  
158 -----
159 -
160 -## **Critique and Observations**##
161 -
162 -1. **Strengths of the Study:**
163 - - **First large-scale genetic analysis** of Indian population history.
164 - - Introduces **new methods for ancestry estimation without direct ancestral reference groups**.
165 -
166 -2. **Limitations of the Study:**
167 - - Limited **sample size relative to India's population diversity**.
168 - - Does not include **recent admixture events** post-colonial era.
169 -
170 -3. **Suggestions for Improvement:**
171 - - Future research should **expand sampling across more Indian tribal groups**.
172 - - Use **whole-genome sequencing** for finer resolution of ancestry.
173 -
174 -----
175 -
176 -## **Relevance to Subproject**
177 -- Provides a **genetic basis for caste and linguistic diversity** in India.
178 -- Highlights **founder effects and genetic drift** shaping South Asian populations.
179 -- Supports research on **medical genetics and disease risk prediction** in Indian populations.##
180 -
181 -----
182 -
183 -## **Suggestions for Further Exploration**##
184 -
185 -1. Examine **genetic markers linked to disease susceptibility** in Indian subpopulations.
186 -2. Investigate the impact of **recent migration patterns on ANI-ASI ancestry distribution**.
187 -3. Study **gene flow between Indian populations and other global groups**.
188 -
189 -----
190 -
191 -## **Summary of Research Study**
192 -This study reconstructs **the genetic history of India**, revealing two ancestral populations—**ANI (related to West Eurasians) and ASI (distinctly South Asian)**. By analyzing **25 diverse Indian groups**, the researchers demonstrate how **historical endogamy and founder effects** have maintained genetic differentiation. The findings have **implications for medical genetics, population history, and the study of South Asian ancestry**.##
193 -
194 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
195 -
196 -----
197 -
198 -## **📄 Download Full Study**
199 -[[Download Full Study>>attach:10.1038_nature08365.pdf]]##
200 -
201 -
202 -{{/expandable}}
203 -
204 -
205 -== Study: The Simons Genome Diversity Project: 300 Genomes from 142 Diverse Populations ==
206 -
207 -
208 -{{expandable expandByDefault="false" summary="Study: The Simons Genome Diversity Project: 300 Genomes from 142 Diverse Populations"}}
209 -
210 -
211 -**Source:** *Nature*
212 -**Date of Publication:** *2016*
213 -**Author(s):** *David Reich, Swapan Mallick, Heng Li, Mark Lipson, and others*
214 -**Title:** *"The Simons Genome Diversity Project: 300 Genomes from 142 Diverse Populations"*
215 -**DOI:** [10.1038/nature18964](https://doi.org/10.1038/nature18964)
216 -**Subject Matter:** *Human Genetic Diversity, Population History, Evolutionary Genomics* 
217 -
218 -----
219 -
220 -## **Key Statistics**##
221 -
61 +## **Key Statistics**
222 222  1. **General Observations:**
223 - - Analyzed **high-coverage genome sequences of 300 individuals from 142 populations**.
224 - - Included **many underrepresented and indigenous groups** from Africa, Asia, Europe, and the Americas.
63 + - [Statistical finding or observation]
64 + - [Statistical finding or observation]
225 225  
226 226  2. **Subgroup Analysis:**
227 - - Found **higher genetic diversity within African populations** compared to non-African groups.
228 - - Showed **Neanderthal and Denisovan ancestry in non-African populations**, particularly in Oceania.
67 + - [Breakdown of findings by gender, race, or other subgroups]
229 229  
230 230  3. **Other Significant Data Points:**
231 - - Identified **5.8 million base pairs absent from the human reference genome**.
232 - - Estimated that **mutations have accumulated 5% faster in non-Africans than in Africans**.
70 + - [Any additional findings or significant statistics]
233 233  
234 -----
72 +---
235 235  
236 -## **Findings**##
237 -
74 +## **Findings**
238 238  1. **Primary Observations:**
239 - - **African populations harbor the greatest genetic diversity**, confirming an out-of-Africa dispersal model.
240 - - Indigenous Australians and New Guineans **share a common ancestral population with other non-Africans**.
76 + - [High-level findings or trends in the study]
241 241  
242 242  2. **Subgroup Trends:**
243 - - **Lower heterozygosity in non-Africans** due to founder effects from migration bottlenecks.
244 - - **Denisovan ancestry in South Asians is higher than previously thought**.
79 + - [Disparities or differences highlighted in the study]
245 245  
246 246  3. **Specific Case Analysis:**
247 - - **Neanderthal ancestry is higher in East Asians than in Europeans**.
248 - - African hunter-gatherer groups show **deep population splits over 100,000 years ago**.
82 + - [Detailed explanation of any notable specific findings]
249 249  
250 -----
84 +---
251 251  
252 -## **Critique and Observations**##
253 -
86 +## **Critique and Observations**
254 254  1. **Strengths of the Study:**
255 - - **Largest global genetic dataset** outside of the 1000 Genomes Project.
256 - - High sequencing depth allows **more accurate identification of genetic variants**.
88 + - [Examples: strong methodology, large dataset, etc.]
257 257  
258 258  2. **Limitations of the Study:**
259 - - **Limited sample sizes for some populations**, restricting generalizability.
260 - - Lacks ancient DNA comparisons, making it difficult to reconstruct deep ancestry fully.
91 + - [Examples: data gaps, lack of upstream analysis, etc.]
261 261  
262 262  3. **Suggestions for Improvement:**
263 - - Future studies should include **ancient genomes** to improve demographic modeling.
264 - - Expand research into **how genetic variation affects health outcomes** across populations.
94 + - [Ideas for further research or addressing limitations]
265 265  
266 -----
96 +---
267 267  
268 268  ## **Relevance to Subproject**
269 -- Provides **comprehensive data on human genetic diversity**, useful for **evolutionary studies**.
270 -- Supports research on **Neanderthal and Denisovan introgression** in modern human populations.
271 -- Enhances understanding of **genetic adaptation and disease susceptibility across groups**.##
99 +- [Explanation of how this study contributes to your subproject goals.]
100 +- [Any key arguments or findings that support or challenge your views.]
272 272  
273 -----
102 +---
274 274  
275 -## **Suggestions for Further Exploration**##
104 +## **Suggestions for Further Exploration**
105 +1. [Research questions or areas to investigate further.]
106 +2. [Potential studies or sources to complement this analysis.]
276 276  
277 -1. Investigate **functional consequences of genetic variation in underrepresented populations**.
278 -2. Study **how selection pressures shaped genetic diversity across different environments**.
279 -3. Explore **medical applications of population-specific genetic markers**.
108 +---
280 280  
281 -----
282 -
283 283  ## **Summary of Research Study**
284 -This study presents **high-coverage genome sequences from 300 individuals across 142 populations**, offering **new insights into global genetic diversity and human evolution**. The findings highlight **deep African population splits, widespread archaic ancestry in non-Africans, and unique variants absent from the human reference genome**. The research enhances our understanding of **migration patterns, adaptation, and evolutionary history**.##
111 +This study examines **[core research question or focus]**, providing insights into **[main subject area]**. The research utilized **[sample size and methodology]** to assess **[key variables or measured outcomes]**.
285 285  
286 -This summary provides an accessible, at-a-glance overview of the studys contributions. Please refer to the full paper for in-depth analysis.
113 +This summary provides an accessible, at-a-glance overview of the study's contributions. Please refer to the full paper for in-depth analysis.
287 287  
288 -----
115 +---
289 289  
290 290  ## **📄 Download Full Study**
291 -[[Download Full Study>>attach:10.1038_nature18964.pdf]]##
292 -
293 -
294 -{{/expandable}}
118 +{{velocity}}
119 +#set($doi = "[Insert DOI Here]")
120 +#set($filename = "${doi}.pdf")
121 +#if($xwiki.exists("attach:$filename"))
122 +[[Download>>attach:$filename]]
123 +#else
124 +{{html}}<span style="color: red; font-weight: bold;">🚨 PDF Not Available 🚨</span>{{/html}}
125 +#end
126 +{{/velocity}}
295 295  
128 +{{/expand}}
296 296  
297 -== Study: Meta-analysis of the heritability of human traits based on fifty years of twin studies ==
130 +{{html}}<hr style="border: 3px solid red;">{{/html}}
298 298  
299 -{{expandable expandByDefault="false" summary="Study: Meta-analysis of the heritability of human traits based on fifty years of twin studies"}}
300 -**Source:** *Nature Genetics*
301 -**Date of Publication:** *2015*
302 -**Author(s):** *Tinca J. C. Polderman, Beben Benyamin, Christiaan A. de Leeuw, Patrick F. Sullivan, Arjen van Bochoven, Peter M. Visscher, Danielle Posthuma*
303 -**Title:** *"Meta-analysis of the heritability of human traits based on fifty years of twin studies"*
304 -**DOI:** [10.1038/ng.328](https://doi.org/10.1038/ng.328)
305 -**Subject Matter:** *Genetics, Heritability, Twin Studies, Behavioral Science* 
306 306  
307 -----
308 308  
309 -## **Key Statistics**##
134 +---
310 310  
311 -1. **General Observations:**
312 - - Analyzed **17,804 traits from 2,748 twin studies** published between **1958 and 2012**.
313 - - Included data from **14,558,903 twin pairs**, making it the largest meta-analysis on human heritability.
136 +{{expand title="Study: Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018" expanded="false"}}
137 +**Source:** *JAMA Network Open*
138 +**Date of Publication:** *2020*
139 +**Author(s):** *Ueda P, Mercer CH, Ghaznavi C, Herbenick D.*
140 +**Title:** *"Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018"*
141 +**DOI:** [10.1001/jamanetworkopen.2020.3833](https://doi.org/10.1001/jamanetworkopen.2020.3833)
142 +**Subject Matter:** *Public Health, Sexual Behavior, Demography*
314 314  
315 -2. **Subgroup Analysis:**
316 - - Found **49% average heritability** across all traits.
317 - - **69% of traits follow a simple additive genetic model**, meaning most variance is due to genes, not environment.
144 +---
318 318  
319 -3. **Other Significant Data Points:**
320 - - **Neurological, metabolic, and psychiatric traits** showed the highest heritability estimates.
321 - - Traits related to **social values and environmental interactions** had lower heritability estimates.
322 -
323 -----
324 -
325 -## **Findings**##
326 -
327 -1. **Primary Observations:**
328 - - Across all traits, genetic factors play a significant role in individual differences.
329 - - The study contradicts models that **overestimate environmental effects in behavioral and cognitive traits**.
330 -
331 -2. **Subgroup Trends:**
332 - - **Eye and brain-related traits showed the highest heritability (70-80%)**.
333 - - **Shared environmental effects were negligible (<10%) for most traits**.
334 -
335 -3. **Specific Case Analysis:**
336 - - Twin correlations suggest **limited evidence for strong non-additive genetic influences**.
337 - - The study highlights **missing heritability in complex traits**, which genome-wide association studies (GWAS) have yet to fully explain.
338 -
339 -----
340 -
341 -## **Critique and Observations**##
342 -
343 -1. **Strengths of the Study:**
344 - - **Largest-ever heritability meta-analysis**, covering nearly all published twin studies.
345 - - Provides a **comprehensive framework for understanding gene-environment contributions**.
346 -
347 -2. **Limitations of the Study:**
348 - - **Underrepresentation of African, South American, and Asian twin cohorts**, limiting global generalizability.
349 - - Cannot **fully separate genetic influences from potential cultural/environmental confounders**.
350 -
351 -3. **Suggestions for Improvement:**
352 - - Future research should use **whole-genome sequencing** for finer-grained heritability estimates.
353 - - **Incorporate non-Western populations** to assess global heritability trends.
354 -
355 -----
356 -
357 -## **Relevance to Subproject**
358 -- Establishes a **quantitative benchmark for heritability across human traits**.
359 -- Reinforces **genetic influence on cognitive, behavioral, and physical traits**.
360 -- Highlights the need for **genome-wide studies to identify missing heritability**.##
361 -
362 -----
363 -
364 -## **Suggestions for Further Exploration**##
365 -
366 -1. Investigate how **heritability estimates compare across different socioeconomic backgrounds**.
367 -2. Examine **gene-environment interactions in cognitive and psychiatric traits**.
368 -3. Explore **non-additive genetic effects on human traits using newer statistical models**.
369 -
370 -----
371 -
372 -## **Summary of Research Study**
373 -This study presents a **comprehensive meta-analysis of human trait heritability**, covering **over 50 years of twin research**. The findings confirm **genes play a predominant role in shaping human traits**, with an **average heritability of 49%** across all measured characteristics. The research offers **valuable insights into genetic and environmental influences**, guiding future gene-mapping efforts and behavioral genetics studies.##
374 -
375 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
376 -
377 -----
378 -
379 -## **📄 Download Full Study**
380 -[[Download Full Study>>attach:10.1038_ng.328.pdf]]##
381 -{{/expandable}}
382 -
383 -
384 -== Study: Genetic Analysis of African Populations: Human Evolution and Complex Disease ==
385 -
386 -{{expandable expandByDefault="false" summary="Study: Genetic Analysis of African Populations: Human Evolution and Complex Disease"}}
387 -**Source:** *Nature Reviews Genetics*
388 -**Date of Publication:** *2002*
389 -**Author(s):** *Sarah A. Tishkoff, Scott M. Williams*
390 -**Title:** *"Genetic Analysis of African Populations: Human Evolution and Complex Disease"*
391 -**DOI:** [10.1038/nrg865](https://doi.org/10.1038/nrg865)
392 -**Subject Matter:** *Population Genetics, Human Evolution, Complex Diseases* 
393 -
394 -----
395 -
396 -## **Key Statistics**##
397 -
146 +## **Key Statistics**
398 398  1. **General Observations:**
399 - - Africa harbors **the highest genetic diversity** of any region, making it key to understanding human evolution.
400 - - The study analyzes **genetic variation and linkage disequilibrium (LD) in African populations**.
148 + - Study analyzed **General Social Survey (2000-2018)** data.
149 + - Found **declining trends in sexual activity** among young adults.
401 401  
402 402  2. **Subgroup Analysis:**
403 - - African populations exhibit **greater genetic differentiation compared to non-Africans**.
404 - - **Migration and admixture** have shaped modern African genomes over the past **100,000 years**.
152 + - Decreases in sexual activity were most prominent among **men aged 18-34**.
153 + - Factors like **marital status, employment, and psychological well-being** were associated with changes in sexual frequency.
405 405  
406 406  3. **Other Significant Data Points:**
407 - - The **effective population size (Ne) of Africans** is higher than that of non-African populations.
408 - - LD blocks are **shorter in African genomes**, suggesting more historical recombination events.
156 + - Frequency of sexual activity decreased by **8-10%** over the studied period.
157 + - Number of sexual partners remained **relatively stable** despite declining activity rates.
409 409  
410 -----
159 +---
411 411  
412 -## **Findings**##
413 -
161 +## **Findings**
414 414  1. **Primary Observations:**
415 - - African populations are the **most genetically diverse**, supporting the *Recent African Origin* hypothesis.
416 - - Genetic variation in African populations can **help fine-map complex disease genes**.
163 + - A significant decline in sexual frequency, especially among **younger men**.
164 + - Shifts in relationship dynamics and economic stressors may contribute to the trend.
417 417  
418 418  2. **Subgroup Trends:**
419 - - **West Africans exhibit higher genetic diversity** than East Africans due to differing migration patterns.
420 - - Populations such as **San hunter-gatherers show deep genetic divergence**.
167 + - More pronounced decline among **unmarried individuals**.
168 + - No major change observed for **married adults** over time.
421 421  
422 422  3. **Specific Case Analysis:**
423 - - Admixture in African Americans includes **West African and European genetic contributions**.
424 - - SNP (single nucleotide polymorphism) diversity in African genomes **exceeds that of non-African groups**.
171 + - **Mental health and employment status** were correlated with decreased activity.
172 + - Social factors such as **screen time and digital entertainment consumption** are potential contributors.
425 425  
426 -----
174 +---
427 427  
428 -## **Critique and Observations**##
429 -
176 +## **Critique and Observations**
430 430  1. **Strengths of the Study:**
431 - - Provides **comprehensive genetic analysis** of diverse African populations.
432 - - Highlights **how genetic diversity impacts health disparities and disease risks**.
178 + - **Large sample size** from a nationally representative dataset.
179 + - **Longitudinal design** enables trend analysis over time.
433 433  
434 434  2. **Limitations of the Study:**
435 - - Many **African populations remain understudied**, limiting full understanding of diversity.
436 - - Focuses more on genetic variation than on **specific disease mechanisms**.
182 + - Self-reported data may introduce **response bias**.
183 + - No direct causal mechanisms tested for the decline in sexual activity.
437 437  
438 438  3. **Suggestions for Improvement:**
439 - - Expand research into **underrepresented African populations**.
440 - - Integrate **whole-genome sequencing for a more detailed evolutionary timeline**.
186 + - Further studies should incorporate **qualitative data** on behavioral shifts.
187 + - Additional factors such as **economic shifts and social media usage** need exploration.
441 441  
442 -----
189 +---
443 443  
444 444  ## **Relevance to Subproject**
445 -- Supports **genetic models of human evolution** and the **out-of-Africa hypothesis**.
446 -- Reinforces **Africa’s key role in disease gene mapping and precision medicine**.
447 -- Provides insight into **historical migration patterns and their genetic impact**.##
192 +- Provides evidence on **changing demographic behaviors** in relation to relationships and social interactions.
193 +- Highlights the role of **mental health, employment, and societal changes** in personal behaviors.
448 448  
449 -----
195 +---
450 450  
451 -## **Suggestions for Further Exploration**##
197 +## **Suggestions for Further Exploration**
198 +1. Investigate the **impact of digital media consumption** on relationship dynamics.
199 +2. Examine **regional and cultural differences** in sexual activity trends.
452 452  
453 -1. Investigate **genetic adaptations to local environments within Africa**.
454 -2. Study **the role of African genetic diversity in disease resistance**.
455 -3. Expand research on **how ancient migration patterns shaped modern genetic structure**.
201 +---
456 456  
457 -----
458 -
459 459  ## **Summary of Research Study**
460 -This study explores the **genetic diversity of African populations**, analyzing their role in **human evolution and complex disease research**. The findings highlight **Africa’s unique genetic landscape**, confirming it as the most genetically diverse continent. The research provides valuable insights into **how genetic variation influences disease susceptibility, evolution, and population structure**.##
204 +This study examines **trends in sexual frequency and number of partners among U.S. adults (2000-2018)**, highlighting significant **declines in sexual activity, particularly among young men**. The research utilized **General Social Survey data** to analyze the impact of **sociodemographic factors, employment status, and mental well-being** on sexual behavior.
461 461  
462 -This summary provides an accessible, at-a-glance overview of the studys contributions. Please refer to the full paper for in-depth analysis.
206 +This summary provides an accessible, at-a-glance overview of the study's contributions. Please refer to the full paper for in-depth analysis.
463 463  
464 -----
208 +---
465 465  
466 466  ## **📄 Download Full Study**
467 -[[Download Full Study>>attach:10.1038_nrg865MODERN.pdf]]##
468 -{{/expandable}}
211 +{{velocity}}
212 +#set($doi = "10.1001_jamanetworkopen.2020.3833")
213 +#set($filename = "${doi}.pdf")
214 +#if($xwiki.exists("attach:$filename"))
215 +[[Download>>attach:$filename]]
216 +#else
217 +{{html}}<span style="color: red; font-weight: bold;">🚨 PDF Not Available 🚨</span>{{/html}}
218 +#end
219 +{{/velocity}}
469 469  
221 +{{/expand}}
470 470  
471 -== Study: Pervasive Findings of Directional Selection in Ancient DNA ==
223 +{{html}}<hr style="border: 3px solid red;">{{/html}}
472 472  
473 -{{expandable expandByDefault="false" summary="Study: Pervasive Findings of Directional Selection in Ancient DNA"}}
474 -**Source:** *bioRxiv Preprint*
475 -**Date of Publication:** *September 15, 2024*
476 -**Author(s):** *Ali Akbari, Alison R. Barton, Steven Gazal, Zheng Li, Mohammadreza Kariminejad, et al.*
477 -**Title:** *"Pervasive findings of directional selection realize the promise of ancient DNA to elucidate human adaptation"*
478 -**DOI:** [10.1101/2024.09.14.613021](https://doi.org/10.1101/2024.09.14.613021)
479 -**Subject Matter:** *Genomics, Evolutionary Biology, Natural Selection* 
480 480  
481 -----
226 +{{expand title="Study: One is the Loneliest Number: Involuntary Celibacy (Incel), Mental Health, and Loneliness" expanded="false"}}
227 +**Source:** *Current Psychology*
228 +**Date of Publication:** *2024*
229 +**Author(s):** *Brandon Sparks, Alexandra M. Zidenberg, Mark E. Olver*
230 +**Title:** *"One is the Loneliest Number: Involuntary Celibacy (Incel), Mental Health, and Loneliness"*
231 +**DOI:** [10.1007/s12144-023-04275-z](https://doi.org/10.1007/s12144-023-04275-z)
232 +**Subject Matter:** *Psychology, Mental Health, Social Isolation*
482 482  
483 -## **Key Statistics**##
234 +---
484 484  
236 +## **Key Statistics**
485 485  1. **General Observations:**
486 - - Study analyzes **8,433 ancient individuals** from the past **14,000 years**.
487 - - Identifies **347 genome-wide significant loci** showing strong selection.
238 + - Study analyzed **67 self-identified incels** and **103 non-incel men**.
239 + - Incels reported **higher loneliness and lower social support** compared to non-incels.
488 488  
489 489  2. **Subgroup Analysis:**
490 - - Examines **West Eurasian populations** and their genetic evolution.
491 - - Tracks **changes in allele frequencies over millennia**.
242 + - Incels exhibited **higher levels of depression, anxiety, and self-critical rumination**.
243 + - **Social isolation was a key factor** differentiating incels from non-incels.
492 492  
493 493  3. **Other Significant Data Points:**
494 - - **10,000 years of directional selection** affected metabolic, immune, and cognitive traits.
495 - - **Strong selection signals** found for traits like **skin pigmentation, cognitive function, and immunity**.
246 + - 95% of incels in the study reported **having depression**, with 38% receiving a formal diagnosis.
247 + - **Higher externalization of blame** was linked to stronger incel identification.
496 496  
497 -----
249 +---
498 498  
499 -## **Findings**##
500 -
251 +## **Findings**
501 501  1. **Primary Observations:**
502 - - **Hundreds of alleles have been subject to directional selection** over recent millennia.
503 - - Traits like **immune function, metabolism, and cognitive performance** show strong selection.
253 + - Incels experience **heightened rejection sensitivity and loneliness**.
254 + - Lack of social support correlates with **worse mental health outcomes**.
504 504  
505 505  2. **Subgroup Trends:**
506 - - Selection pressure on **energy storage genes** supports the **Thrifty Gene Hypothesis**.
507 - - **Cognitive performance-related alleles** have undergone selection, but their historical advantages remain unclear.
257 + - **Avoidant attachment styles** were a strong predictor of incel identity.
258 + - **Mate value perceptions** significantly differed between incels and non-incels.
508 508  
509 509  3. **Specific Case Analysis:**
510 - - **Celiac disease risk allele** increased from **0% to 20%** in 4,000 years.
511 - - **Blood type B frequency rose from 0% to 8% in 6,000 years**.
512 - - **Tuberculosis risk allele** fluctuated from **2% to 9% over 3,000 years before declining**.
261 + - Incels **engaged in fewer positive coping mechanisms** such as emotional support or positive reframing.
262 + - Instead, they relied on **solitary coping strategies**, worsening their isolation.
513 513  
514 -----
264 +---
515 515  
516 -## **Critique and Observations**##
517 -
266 +## **Critique and Observations**
518 518  1. **Strengths of the Study:**
519 - - **Largest dataset to date** on natural selection in human ancient DNA.
520 - - Uses **direct allele frequency tracking instead of indirect measures**.
268 + - **First quantitative study** on incels’ social isolation and mental health.
269 + - **Robust sample size** and validated psychological measures.
521 521  
522 522  2. **Limitations of the Study:**
523 - - Findings **may not translate directly** to modern populations.
524 - - **Unclear whether observed selection pressures persist today**.
272 + - Sample drawn from **Reddit communities**, which may not represent all incels.
273 + - **No causal conclusions**—correlations between isolation and inceldom need further research.
525 525  
526 526  3. **Suggestions for Improvement:**
527 - - Expanding research to **other global populations** to assess universal trends.
528 - - Investigating **long-term evolutionary trade-offs of selected alleles**.
276 + - Future studies should **compare incel forum users vs. non-users**.
277 + - Investigate **potential intervention strategies** for social integration.
529 529  
530 -----
279 +---
531 531  
532 532  ## **Relevance to Subproject**
533 -- Provides **direct evidence of long-term genetic adaptation** in human populations.
534 -- Supports theories on **polygenic selection shaping human cognition, metabolism, and immunity**.
535 -- Highlights **how past selection pressures may still influence modern health and disease prevalence**.##
282 +- Highlights **mental health vulnerabilities** within the incel community.
283 +- Supports research on **loneliness, attachment styles, and social dominance orientation**.
284 +- Examines how **peer rejection influences self-perceived mate value**.
536 536  
537 -----
286 +---
538 538  
539 -## **Suggestions for Further Exploration**##
288 +## **Suggestions for Further Exploration**
289 +1. Explore how **online community participation** affects incel mental health.
290 +2. Investigate **cognitive biases** influencing self-perceived rejection among incels.
291 +3. Assess **therapeutic interventions** to address incel social isolation.
540 540  
541 -1. Examine **selection patterns in non-European populations** for comparison.
542 -2. Investigate **how environmental and cultural shifts influenced genetic selection**.
543 -3. Explore **the genetic basis of traits linked to past and present-day human survival**.
293 +---
544 544  
545 -----
546 -
547 547  ## **Summary of Research Study**
548 -This study examines **how human genetic adaptation has unfolded over 14,000 years**, using a **large dataset of ancient DNA**. It highlights **strong selection on immune function, metabolism, and cognitive traits**, revealing **hundreds of loci affected by directional selection**. The findings emphasize **the power of ancient DNA in tracking human evolution and adaptation**.##
296 +This study examines the **psychological characteristics of self-identified incels**, comparing them with non-incel men in terms of **mental health, loneliness, and coping strategies**. The research found **higher depression, anxiety, and avoidant attachment styles among incels**, as well as **greater reliance on solitary coping mechanisms**. It suggests that **lack of social support plays a critical role in exacerbating incel identity and related mental health concerns**.
549 549  
550 -----
551 -
552 -## **📄 Download Full Study**
553 -[[Download Full Study>>attach:10.1101_2024.09.14.613021doi_.pdf]]##
554 -{{/expandable}}
555 -
556 -
557 -== Study: The Wilson Effect: The Increase in Heritability of IQ With Age ==
558 -
559 -{{expandable expandByDefault="false" summary="Study: The Wilson Effect: The Increase in Heritability of IQ With Age"}}
560 -**Source:** *Twin Research and Human Genetics (Cambridge University Press)*
561 -**Date of Publication:** *2013*
562 -**Author(s):** *Thomas J. Bouchard Jr.*
563 -**Title:** *"The Wilson Effect: The Increase in Heritability of IQ With Age"*
564 -**DOI:** [10.1017/thg.2013.54](https://doi.org/10.1017/thg.2013.54)
565 -**Subject Matter:** *Intelligence, Heritability, Developmental Psychology* 
566 -
567 -----
568 -
569 -## **Key Statistics**##
570 -
571 -1. **General Observations:**
572 - - The study documents how the **heritability of IQ increases with age**, reaching an asymptote at **0.80 by adulthood**.
573 - - Analysis is based on **longitudinal twin and adoption studies**.
574 -
575 -2. **Subgroup Analysis:**
576 - - Shared environmental influence on IQ **declines with age**, reaching **0.10 in adulthood**.
577 - - Monozygotic twins show **increasing genetic similarity in IQ over time**, while dizygotic twins become **less concordant**.
578 -
579 -3. **Other Significant Data Points:**
580 - - Data from the **Louisville Longitudinal Twin Study and cross-national twin samples** support findings.
581 - - IQ stability over time is **influenced more by genetics than by shared environmental factors**.
582 -
583 -----
584 -
585 -## **Findings**##
586 -
587 -1. **Primary Observations:**
588 - - Intelligence heritability **strengthens throughout development**, contrary to early environmental models.
589 - - Shared environmental effects **decrease by late adolescence**, emphasizing **genetic influence in adulthood**.
590 -
591 -2. **Subgroup Trends:**
592 - - Studies from **Scotland, Netherlands, and the US** show **consistent patterns of increasing heritability with age**.
593 - - Findings hold across **varied socio-economic and educational backgrounds**.
594 -
595 -3. **Specific Case Analysis:**
596 - - Longitudinal adoption studies show **declining impact of adoptive parental influence on IQ** as children age.
597 - - Cross-sectional twin data confirm **higher IQ correlations for monozygotic twins in adulthood**.
598 -
599 -----
600 -
601 -## **Critique and Observations**##
602 -
603 -1. **Strengths of the Study:**
604 - - **Robust dataset covering multiple twin and adoption studies over decades**.
605 - - **Clear, replicable trend** demonstrating the increasing role of genetics in intelligence.
606 -
607 -2. **Limitations of the Study:**
608 - - Findings apply primarily to **Western industrialized nations**, limiting generalizability.
609 - - **Lack of neurobiological mechanisms** explaining how genes express their influence over time.
610 -
611 -3. **Suggestions for Improvement:**
612 - - Future research should investigate **gene-environment interactions in cognitive aging**.
613 - - Examine **heritability trends in non-Western populations** to determine cross-cultural consistency.
614 -
615 -----
616 -
617 -## **Relevance to Subproject**
618 -- Provides **strong evidence for the genetic basis of intelligence**.
619 -- Highlights the **diminishing role of shared environment in cognitive development**.
620 -- Supports research on **cognitive aging and heritability across the lifespan**.##
621 -
622 -----
623 -
624 -## **Suggestions for Further Exploration**##
625 -
626 -1. Investigate **neurogenetic pathways underlying IQ development**.
627 -2. Examine **how education and socioeconomic factors interact with genetic IQ influences**.
628 -3. Study **heritability trends in aging populations and cognitive decline**.
629 -
630 -----
631 -
632 -## **Summary of Research Study**
633 -This study documents **The Wilson Effect**, demonstrating how the **heritability of IQ increases throughout development**, reaching a plateau of **0.80 by adulthood**. The findings indicate that **shared environmental effects diminish with age**, while **genetic influences on intelligence strengthen**. Using **longitudinal twin and adoption data**, the research provides **strong empirical support for the increasing role of genetics in cognitive ability over time**.##
634 -
635 635  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
636 636  
637 -----
300 +---
638 638  
639 639  ## **📄 Download Full Study**
640 -[[Download Full Study>>attach:10.1017_thg.2013.54.pdf]]##
641 -{{/expandable}}
303 +[[Download Full Study>>attach:10.1007_s12144-023-04275-z.pdf]]
642 642  
305 +{{/expand}}
643 643  
644 -== Study: Is Homo sapiens polytypic? Human taxonomic diversity and its implications ==
307 +{{html}}<hr style="border: 3px solid red;">{{/html}}
645 645  
646 -{{expandable expandByDefault="false" summary="Study: Is Homo sapiens polytypic? Human taxonomic diversity and its implications"}}
647 -**Source:** *Medical Hypotheses (Elsevier)*
648 -**Date of Publication:** *2010*
649 -**Author(s):** *Michael A. Woodley*
650 -**Title:** *"Is Homo sapiens polytypic? Human taxonomic diversity and its implications"*
651 -**DOI:** [10.1016/j.mehy.2009.07.046](https://doi.org/10.1016/j.mehy.2009.07.046)
652 -**Subject Matter:** *Human Taxonomy, Evolutionary Biology, Anthropology* 
309 +{{expand title="Study: Associations Between Cannabis Use and Mental Health Symptoms in Young Adults" expanded="false"}} Source: Addictive Behaviors
310 +Date of Publication: 2016
311 +Author(s): Andrea Hussong, Christy Capron, Gregory T. Smith, Jennifer L. Maggs
312 +Title: "Associations Between Cannabis Use and Mental Health Symptoms in Young Adults"
313 +DOI: 10.1016/j.addbeh.2016.02.030
314 +Subject Matter: Substance Use, Mental Health, Adolescent Development
653 653  
654 -----
316 +Key Statistics
317 +General Observations:
655 655  
656 -## **Key Statistics**##
319 +Study examined cannabis use trends in young adults over time.
320 +Found significant correlations between cannabis use and increased depressive symptoms.
321 +Subgroup Analysis:
657 657  
658 -1. **General Observations:**
659 - - The study argues that **Homo sapiens is polytypic**, meaning it consists of multiple subspecies rather than a single monotypic species.
660 - - Examines **genetic diversity, morphological variation, and evolutionary lineage** in humans.
323 +Males exhibited higher rates of cannabis use, but females reported stronger mental health impacts.
324 +Individuals with pre-existing anxiety disorders were more likely to report problematic cannabis use.
325 +Other Significant Data Points:
661 661  
662 -2. **Subgroup Analysis:**
663 - - Discusses **four primary definitions of race/subspecies**: Essentialist, Taxonomic, Population-based, and Lineage-based.
664 - - Suggests that **human heterozygosity levels are comparable to species that are classified as polytypic**.
327 +Frequent cannabis users showed a 23% higher likelihood of developing anxiety symptoms.
328 +Co-occurring substance use (e.g., alcohol) exacerbated negative psychological effects.
329 +Findings
330 +Primary Observations:
665 665  
666 -3. **Other Significant Data Points:**
667 - - The study evaluates **FST values (genetic differentiation measure)** and argues that human genetic differentiation is comparable to that of recognized subspecies in other species.
668 - - Considers **phylogenetic species concepts** in defining human variation.
332 +Cannabis use was linked to higher depressive and anxiety symptoms, particularly in frequent users.
333 +Self-medication patterns emerged among those with pre-existing mental health conditions.
334 +Subgroup Trends:
669 669  
670 -----
336 +Early cannabis initiation (before age 16) was associated with greater mental health risks.
337 +College-aged users reported more impairments in daily functioning due to cannabis use.
338 +Specific Case Analysis:
671 671  
672 -## **Findings**##
340 +Participants with a history of childhood trauma were twice as likely to develop problematic cannabis use.
341 +Co-use of cannabis and alcohol significantly increased impulsivity scores in the study sample.
342 +Critique and Observations
343 +Strengths of the Study:
673 673  
674 -1. **Primary Observations:**
675 - - Proposes that **modern human populations meet biological criteria for subspecies classification**.
676 - - Highlights **medical and evolutionary implications** of human taxonomic diversity.
345 +Large, longitudinal dataset with a diverse sample of young adults.
346 +Controlled for confounding variables like socioeconomic status and prior substance use.
347 +Limitations of the Study:
677 677  
678 -2. **Subgroup Trends:**
679 - - Discusses **how race concepts evolved over time** in biological sciences.
680 - - Compares **human diversity with that of other primates** such as chimpanzees and gorillas.
349 +Self-reported cannabis use may introduce bias in reported frequency and effects.
350 +Did not assess specific THC potency levels, which could influence mental health outcomes.
351 +Suggestions for Improvement:
681 681  
682 -3. **Specific Case Analysis:**
683 - - Evaluates how **genetic markers correlate with population structure**.
684 - - Addresses the **controversy over race classification in modern anthropology**.
353 +Future research should investigate dose-dependent effects of cannabis on mental health.
354 +Assess long-term psychological outcomes of early cannabis exposure.
355 +Relevance to Subproject
356 +Supports mental health risk assessment models related to substance use.
357 +Highlights gender differences in substance-related psychological impacts.
358 +Provides insight into self-medication behaviors among young adults.
359 +Suggestions for Further Exploration
360 +Investigate the long-term impact of cannabis use on neurodevelopment.
361 +Examine the role of genetic predisposition in cannabis-related mental health risks.
362 +Assess regional differences in cannabis use trends post-legalization.
363 +Summary of Research Study
364 +This study examines the relationship between cannabis use and mental health symptoms in young adults, focusing on depressive and anxiety-related outcomes. Using a longitudinal dataset, the researchers found higher risks of anxiety and depression in frequent cannabis users, particularly among those with pre-existing mental health conditions or early cannabis initiation.
685 685  
686 -----
687 -
688 -## **Critique and Observations**##
689 -
690 -1. **Strengths of the Study:**
691 - - Uses **comparative species analysis** to assess human classification.
692 - - Provides a **biological perspective** on the race concept, moving beyond social constructivism arguments.
693 -
694 -2. **Limitations of the Study:**
695 - - Controversial topic with **strong opposing views in anthropology and genetics**.
696 - - **Relies on broad genetic trends**, but does not analyze individual-level genetic variation in depth.
697 -
698 -3. **Suggestions for Improvement:**
699 - - Further research should **incorporate whole-genome studies** to refine subspecies classifications.
700 - - Investigate **how admixture affects taxonomic classification over time**.
701 -
702 -----
703 -
704 -## **Relevance to Subproject**
705 -- Contributes to discussions on **evolutionary taxonomy and species classification**.
706 -- Provides evidence on **genetic differentiation among human populations**.
707 -- Highlights **historical and contemporary scientific debates on race and human variation**.##
708 -
709 -----
710 -
711 -## **Suggestions for Further Exploration**##
712 -
713 -1. Examine **FST values in modern and ancient human populations**.
714 -2. Investigate how **adaptive evolution influences population differentiation**.
715 -3. Explore **the impact of genetic diversity on medical treatments and disease susceptibility**.
716 -
717 -----
718 -
719 -## **Summary of Research Study**
720 -This study evaluates **whether Homo sapiens should be classified as a polytypic species**, analyzing **genetic diversity, evolutionary lineage, and morphological variation**. Using comparative analysis with other primates and mammals, the research suggests that **human populations meet biological criteria for subspecies classification**, with implications for **evolutionary biology, anthropology, and medicine**.##
721 -
722 722  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
723 723  
724 -----
368 +📄 Download Full Study
369 +[[Download Full Study>>attach:10.1016_j.addbeh.2016.02.030.pdf]]
725 725  
726 -## **📄 Download Full Study**
727 -[[Download Full Study>>attach:10.1016_j.mehy.2009.07.046.pdf]]##
728 -{{/expandable}}
371 +{{/expand}}
729 729  
373 +{{html}}<hr style="border: 3px solid red;">{{/html}}
730 730  
731 -== Study: Survey of Expert Opinion on Intelligence: Intelligence Research, Experts' Background, Controversial Issues, and the Media ==
732 -
733 -{{expandable expandByDefault="false" summary="Study: Survey of Expert Opinion on Intelligence: Intelligence Research, Experts' Background, Controversial Issues, and the Media"}}
375 +{{expand title="Study: Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?" expanded="false"}}
734 734  **Source:** *Intelligence (Elsevier)*
735 -**Date of Publication:** *2019*
736 -**Author(s):** *Heiner Rindermann, David Becker, Thomas R. Coyle*
737 -**Title:** *"Survey of Expert Opinion on Intelligence: Intelligence Research, Experts' Background, Controversial Issues, and the Media"*
738 -**DOI:** [10.1016/j.intell.2019.101406](https://doi.org/10.1016/j.intell.2019.101406)
739 -**Subject Matter:** *Psychology, Intelligence Research, Expert Analysis* 
377 +**Date of Publication:** *2014*
378 +**Author(s):** *Michael A. Woodley, Jan te Nijenhuis, Raegan Murphy*
379 +**Title:** *"Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?"*
380 +**DOI:** [10.1016/j.intell.2014.05.012](https://doi.org/10.1016/j.intell.2014.05.012)
381 +**Subject Matter:** *Cognitive Decline, Intelligence, Dysgenics*
740 740  
741 -----
383 +---
742 742  
743 -## **Key Statistics**##
744 -
385 +## **Key Statistics**
745 745  1. **General Observations:**
746 - - Survey of **102 experts** on intelligence research and public discourse.
747 - - Evaluated experts' backgrounds, political affiliations, and views on controversial topics in intelligence research.
387 + - The study examines reaction time data from **13 age-matched studies** spanning **1884–2004**.
388 + - Results suggest an estimated **decline of 13.35 IQ points** over this period.
748 748  
749 749  2. **Subgroup Analysis:**
750 - - **90% of experts were from Western countries**, and **83% were male**.
751 - - Political spectrum ranged from **54% left-liberal, 24% conservative**, with significant ideological influences on views.
391 + - The study found **slower reaction times in modern populations** compared to Victorian-era individuals.
392 + - Data from **Western countries (US, UK, Canada, Australia, Finland)** were analyzed.
752 752  
753 753  3. **Other Significant Data Points:**
754 - - Experts rated media coverage of intelligence research as **poor (avg. 3.1 on a 9-point scale)**.
755 - - **50% of experts attributed US Black-White IQ differences to genetic factors, 50% to environmental factors**.
395 + - The estimated **dysgenic rate is 1.21 IQ points lost per decade**.
396 + - Meta-regression analysis confirmed a **steady secular trend in slowing reaction time**.
756 756  
757 -----
398 +---
758 758  
759 -## **Findings**##
760 -
400 +## **Findings**
761 761  1. **Primary Observations:**
762 - - Experts overwhelmingly support **the g-factor theory of intelligence**.
763 - - **Heritability of intelligence** was widely accepted, though views differed on race and group differences.
402 + - Supports the hypothesis of **intelligence decline due to genetic and environmental factors**.
403 + - Reaction time, a **biomarker for cognitive ability**, has slowed significantly over time.
764 764  
765 765  2. **Subgroup Trends:**
766 - - **Left-leaning experts were more likely to reject genetic explanations for group IQ differences**.
767 - - **Right-leaning experts tended to favor a stronger role for genetic factors** in intelligence disparities.
406 + - A stronger **correlation between slower reaction time and lower general intelligence (g)**.
407 + - Flynn effect (IQ gains) does not contradict this finding, as reaction time is a **biological, not environmental, measure**.
768 768  
769 769  3. **Specific Case Analysis:**
770 - - The study compared **media coverage of intelligence research** with expert opinions.
771 - - Found a **disconnect between journalists and intelligence researchers**, especially regarding politically sensitive issues.
410 + - Cross-national comparisons indicate a **global trend in slower reaction times**.
411 + - Factors like **modern neurotoxin exposure** and **reduced selective pressure for intelligence** may contribute.
772 772  
773 -----
413 +---
774 774  
775 -## **Critique and Observations**##
776 -
415 +## **Critique and Observations**
777 777  1. **Strengths of the Study:**
778 - - **Largest expert survey on intelligence research** to date.
779 - - Provides insight into **how political orientation influences scientific perspectives**.
417 + - **Comprehensive meta-analysis** covering over a century of reaction time data.
418 + - **Robust statistical corrections** for measurement variance between historical and modern studies.
780 780  
781 781  2. **Limitations of the Study:**
782 - - **Sample primarily from Western countries**, limiting global perspectives.
783 - - Self-selection bias may skew responses toward **those more willing to engage with controversial topics**.
421 + - Some historical data sources **lack methodological consistency**.
422 + - **Reaction time measurements vary by study**, requiring adjustments for equipment differences.
784 784  
785 785  3. **Suggestions for Improvement:**
786 - - Future studies should include **a broader range of global experts**.
787 - - Additional research needed on **media biases and misrepresentation of intelligence research**.
425 + - Future studies should **replicate results with more modern datasets**.
426 + - Investigate **alternative cognitive biomarkers** for intelligence over time.
788 788  
789 -----
428 +---
790 790  
791 791  ## **Relevance to Subproject**
792 -- Provides insight into **expert consensus and division on intelligence research**.
793 -- Highlights the **role of media bias** in shaping public perception of intelligence science.
794 -- Useful for understanding **the intersection of science, politics, and public discourse** on intelligence research.##
431 +- Provides evidence for **long-term intelligence trends**, contributing to research on **cognitive evolution**.
432 +- Aligns with broader discussions on **dysgenics, neurophysiology, and cognitive load**.
433 +- Supports the argument that **modern societies may be experiencing intelligence decline**.
795 795  
796 -----
435 +---
797 797  
798 -## **Suggestions for Further Exploration**##
437 +## **Suggestions for Further Exploration**
438 +1. Investigate **genetic markers associated with reaction time** and intelligence decline.
439 +2. Examine **regional variations in reaction time trends**.
440 +3. Explore **cognitive resilience factors that counteract the decline**.
799 799  
800 -1. Examine **cross-national differences** in expert opinions on intelligence.
801 -2. Investigate how **media bias impacts public understanding of intelligence research**.
802 -3. Conduct follow-up studies with **a more diverse expert pool** to test findings.
442 +---
803 803  
804 -----
805 -
806 806  ## **Summary of Research Study**
807 -This study surveys **expert opinions on intelligence research**, analyzing **how backgrounds, political ideologies, and media representation influence perspectives on intelligence**. The findings highlight **divisions in scientific consensus**, particularly on **genetic vs. environmental causes of IQ disparities**. Additionally, the research uncovers **widespread dissatisfaction with media portrayals of intelligence research**, pointing to **the impact of ideological biases on public discourse**.##
445 +This study examines **historical reaction time data** as a measure of **cognitive ability and intelligence decline**, analyzing data from **Western populations between 1884 and 2004**. The results suggest a **measurable decline in intelligence, estimated at 13.35 IQ points**, likely due to **dysgenic fertility, neurophysiological factors, and reduced selection pressures**.
808 808  
809 809  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
810 810  
811 -----
449 +---
812 812  
813 813  ## **📄 Download Full Study**
814 -[[Download Full Study>>attach:10.1016_j.intell.2019.101406.pdf]]##
815 -{{/expandable}}
452 +[[Download Full Study>>attach:10.1016_j.intell.2014.05.012.pdf]]
816 816  
454 +{{/expand}}
817 817  
818 -== Study: A Review of Intelligence GWAS Hits: Their Relationship to Country IQ and the Issue of Spatial Autocorrelation ==
456 +{{html}}<hr style="border: 3px solid red;">{{/html}}
819 819  
820 -{{expandable expandByDefault="false" summary="Study: A Review of Intelligence GWAS Hits: Their Relationship to Country IQ and the Issue of Spatial Autocorrelation"}}
458 +{{expand title="Study: A Review of Intelligence GWAS Hits: Their Relationship to Country IQ and the Issue of Spatial Autocorrelation" expanded="false"}}
821 821  **Source:** *Intelligence (Elsevier)*
822 822  **Date of Publication:** *2015*
823 823  **Author(s):** *Davide Piffer*
824 824  **Title:** *"A Review of Intelligence GWAS Hits: Their Relationship to Country IQ and the Issue of Spatial Autocorrelation"*
825 825  **DOI:** [10.1016/j.intell.2015.08.008](https://doi.org/10.1016/j.intell.2015.08.008)
826 -**Subject Matter:** *Genetics, Intelligence, GWAS, Population Differences* 
464 +**Subject Matter:** *Genetics, Intelligence, GWAS, Population Differences*
827 827  
828 -----
466 +---
829 829  
830 -## **Key Statistics**##
831 -
468 +## **Key Statistics**
832 832  1. **General Observations:**
833 833   - Study analyzed **genome-wide association studies (GWAS) hits** linked to intelligence.
834 834   - Found a **strong correlation (r = .91) between polygenic intelligence scores and national IQ levels**.
... ... @@ -841,10 +841,9 @@
841 841   - GWAS intelligence SNPs predicted **IQ levels more strongly than random genetic markers**.
842 842   - Genetic differentiation (Fst values) showed that **selection pressure, rather than drift, influenced intelligence-related allele distributions**.
843 843  
844 -----
481 +---
845 845  
846 -## **Findings**##
847 -
483 +## **Findings**
848 848  1. **Primary Observations:**
849 849   - Intelligence-associated SNP frequencies correlate **highly with national IQ levels**.
850 850   - Genetic selection for intelligence appears **stronger than selection for height-related genes**.
... ... @@ -857,10 +857,9 @@
857 857   - Polygenic scores using **intelligence-related alleles significantly outperformed random SNPs** in predicting IQ.
858 858   - Selection pressures **may explain differences in global intelligence distribution** beyond genetic drift effects.
859 859  
860 -----
496 +---
861 861  
862 -## **Critique and Observations**##
863 -
498 +## **Critique and Observations**
864 864  1. **Strengths of the Study:**
865 865   - **Comprehensive genetic analysis** of intelligence-linked SNPs.
866 866   - Uses **multiple statistical methods (factor analysis, Fst analysis) to confirm results**.
... ... @@ -873,774 +873,296 @@
873 873   - Larger **cross-population GWAS studies** needed to validate findings.
874 874   - Investigate **non-genetic contributors to IQ variance** in addition to genetic factors.
875 875  
876 -----
511 +---
877 877  
878 878  ## **Relevance to Subproject**
879 879  - Supports research on **genetic influences on intelligence at a population level**.
880 880  - Aligns with broader discussions on **cognitive genetics and natural selection effects**.
881 -- Provides a **quantitative framework for analyzing polygenic selection in intelligence studies**.##
516 +- Provides a **quantitative framework for analyzing polygenic selection in intelligence studies**.
882 882  
883 -----
518 +---
884 884  
885 -## **Suggestions for Further Exploration**##
886 -
520 +## **Suggestions for Further Exploration**
887 887  1. Conduct **expanded GWAS studies** including diverse populations.
888 888  2. Investigate **gene-environment interactions influencing intelligence**.
889 889  3. Explore **historical selection pressures shaping intelligence-related alleles**.
890 890  
891 -----
525 +---
892 892  
893 893  ## **Summary of Research Study**
894 -This study reviews **genome-wide association study (GWAS) findings on intelligence**, demonstrating a **strong correlation between polygenic intelligence scores and national IQ levels**. The research highlights how **genetic selection may explain population-level cognitive differences beyond genetic drift effects**. Intelligence-linked alleles showed **higher variability across populations than height-related alleles**, suggesting stronger selection pressures.  ##
528 +This study reviews **genome-wide association study (GWAS) findings on intelligence**, demonstrating a **strong correlation between polygenic intelligence scores and national IQ levels**. The research highlights how **genetic selection may explain population-level cognitive differences beyond genetic drift effects**. Intelligence-linked alleles showed **higher variability across populations than height-related alleles**, suggesting stronger selection pressures.
895 895  
896 896  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
897 897  
898 -----
532 +---
899 899  
900 900  ## **📄 Download Full Study**
901 -[[Download Full Study>>attach:10.1016_j.intell.2015.08.008.pdf]]##
902 -{{/expandable}}
535 +[[Download Full Study>>attach:10.1016_j.intell.2015.08.008.pdf]]
903 903  
537 +{{/expand}}
904 904  
905 -== Study: Genetic Structure, Self-Identified Race/Ethnicity, and Confounding ==
539 +{{html}}<hr style="border: 3px solid red;">{{/html}}
906 906  
907 -{{expandable expandByDefault="false" summary="Click here to expand details"}}
908 -**Source:** Journal of Genetic Epidemiology
909 -**Date of Publication:** 2024-01-15
910 -**Author(s):** Smith et al.
911 -**Title:** "Genetic Structure, Self-Identified Race/Ethnicity, and Confounding in Case-Control Association Studies"
912 -**DOI:** [https://doi.org/10.1037/1076-8971.11.2.235](https://doi.org/10.1037/1076-8971.11.2.235)
913 -**Subject Matter:** Genetics, Social Science 
541 +{{expand title="Study: Survey of Expert Opinion on Intelligence: Intelligence Research, Experts' Background, Controversial Issues, and the Media" expanded="false"}}
542 +**Source:** *Intelligence (Elsevier)*
543 +**Date of Publication:** *2019*
544 +**Author(s):** *Heiner Rindermann, David Becker, Thomas R. Coyle*
545 +**Title:** *"Survey of Expert Opinion on Intelligence: Intelligence Research, Experts' Background, Controversial Issues, and the Media"*
546 +**DOI:** [10.1016/j.intell.2019.101406](https://doi.org/10.1016/j.intell.2019.101406)
547 +**Subject Matter:** *Psychology, Intelligence Research, Expert Analysis*
914 914  
915 -**Tags:** `Genetics` `Race & Ethnicity` `Biomedical Research`
549 +---
916 916  
917 - **Key Statistics**
918 -
551 +## **Key Statistics**
919 919  1. **General Observations:**
920 - - A near-perfect alignment between self-identified race/ethnicity (SIRE) and genetic ancestry was observed.
921 - - Misclassification rate: **0.14%**.
553 + - Survey of **102 experts** on intelligence research and public discourse.
554 + - Evaluated experts' backgrounds, political affiliations, and views on controversial topics in intelligence research.
922 922  
923 923  2. **Subgroup Analysis:**
924 - - Four groups analyzed: **White, African American, East Asian, and Hispanic**.
925 - - Hispanic genetic clusters showed significant European and Native American lineage.
557 + - **90% of experts were from Western countries**, and **83% were male**.
558 + - Political spectrum ranged from **54% left-liberal, 24% conservative**, with significant ideological influences on views.
926 926  
927 - **Findings**
928 -
929 -- Self-identified race strongly aligns with genetic ancestry.
930 -- Minor discrepancies exist but do not significantly impact classification.
931 -
932 - **Relevance to Subproject**
933 -
934 -- Reinforces the reliability of **self-reported racial identity** in genetic research.
935 -- Highlights **policy considerations** in biomedical studies.
936 -{{/expandable}}
937 -
938 -
939 -----
940 -
941 -= Dating and Interpersonal Relationships =
942 -
943 -
944 -== Study: Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018 ==
945 -
946 -{{expandable expandByDefault="false" summary="Study: Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018"}}
947 -**Source:** *JAMA Network Open*
948 -**Date of Publication:** *2020*
949 -**Author(s):** *Ueda P, Mercer CH, Ghaznavi C, Herbenick D.*
950 -**Title:** *"Trends in Frequency of Sexual Activity and Number of Sexual Partners Among Adults Aged 18 to 44 Years in the US, 2000-2018"*
951 -**DOI:** [10.1001/jamanetworkopen.2020.3833](https://doi.org/10.1001/jamanetworkopen.2020.3833)
952 -**Subject Matter:** *Public Health, Sexual Behavior, Demography* 
953 -
954 -----
955 -
956 -## **Key Statistics**##
957 -
958 -1. **General Observations:**
959 - - Study analyzed **General Social Survey (2000-2018)** data.
960 - - Found **declining trends in sexual activity** among young adults.
961 -
962 -2. **Subgroup Analysis:**
963 - - Decreases in sexual activity were most prominent among **men aged 18-34**.
964 - - Factors like **marital status, employment, and psychological well-being** were associated with changes in sexual frequency.
965 -
966 966  3. **Other Significant Data Points:**
967 - - Frequency of sexual activity decreased by **8-10%** over the studied period.
968 - - Number of sexual partners remained **relatively stable** despite declining activity rates.
561 + - Experts rated media coverage of intelligence research as **poor (avg. 3.1 on a 9-point scale)**.
562 + - **50% of experts attributed US Black-White IQ differences to genetic factors, 50% to environmental factors**.
969 969  
970 -----
564 +---
971 971  
972 -## **Findings**##
973 -
566 +## **Findings**
974 974  1. **Primary Observations:**
975 - - A significant decline in sexual frequency, especially among **younger men**.
976 - - Shifts in relationship dynamics and economic stressors may contribute to the trend.
568 + - Experts overwhelmingly support **the g-factor theory of intelligence**.
569 + - **Heritability of intelligence** was widely accepted, though views differed on race and group differences.
977 977  
978 978  2. **Subgroup Trends:**
979 - - More pronounced decline among **unmarried individuals**.
980 - - No major change observed for **married adults** over time.
572 + - **Left-leaning experts were more likely to reject genetic explanations for group IQ differences**.
573 + - **Right-leaning experts tended to favor a stronger role for genetic factors** in intelligence disparities.
981 981  
982 982  3. **Specific Case Analysis:**
983 - - **Mental health and employment status** were correlated with decreased activity.
984 - - Social factors such as **screen time and digital entertainment consumption** are potential contributors.
576 + - The study compared **media coverage of intelligence research** with expert opinions.
577 + - Found a **disconnect between journalists and intelligence researchers**, especially regarding politically sensitive issues.
985 985  
986 -----
579 +---
987 987  
988 -## **Critique and Observations**##
989 -
581 +## **Critique and Observations**
990 990  1. **Strengths of the Study:**
991 - - **Large sample size** from a nationally representative dataset.
992 - - **Longitudinal design** enables trend analysis over time.
583 + - **Largest expert survey on intelligence research** to date.
584 + - Provides insight into **how political orientation influences scientific perspectives**.
993 993  
994 994  2. **Limitations of the Study:**
995 - - Self-reported data may introduce **response bias**.
996 - - No direct causal mechanisms tested for the decline in sexual activity.
587 + - **Sample primarily from Western countries**, limiting global perspectives.
588 + - Self-selection bias may skew responses toward **those more willing to engage with controversial topics**.
997 997  
998 998  3. **Suggestions for Improvement:**
999 - - Further studies should incorporate **qualitative data** on behavioral shifts.
1000 - - Additional factors such as **economic shifts and social media usage** need exploration.
591 + - Future studies should include **a broader range of global experts**.
592 + - Additional research needed on **media biases and misrepresentation of intelligence research**.
1001 1001  
1002 -----
594 +---
1003 1003  
1004 1004  ## **Relevance to Subproject**
1005 -- Provides evidence on **changing demographic behaviors** in relation to relationships and social interactions.
1006 -- Highlights the role of **mental health, employment, and societal changes** in personal behaviors.##
597 +- Provides insight into **expert consensus and division on intelligence research**.
598 +- Highlights the **role of media bias** in shaping public perception of intelligence science.
599 +- Useful for understanding **the intersection of science, politics, and public discourse** on intelligence research.
1007 1007  
1008 -----
601 +---
1009 1009  
1010 -## **Suggestions for Further Exploration**##
603 +## **Suggestions for Further Exploration**
604 +1. Examine **cross-national differences** in expert opinions on intelligence.
605 +2. Investigate how **media bias impacts public understanding of intelligence research**.
606 +3. Conduct follow-up studies with **a more diverse expert pool** to test findings.
1011 1011  
1012 -1. Investigate the **impact of digital media consumption** on relationship dynamics.
1013 -2. Examine **regional and cultural differences** in sexual activity trends.
608 +---
1014 1014  
1015 -----
1016 -
1017 1017  ## **Summary of Research Study**
1018 -This study examines **trends in sexual frequency and number of partners among U.S. adults (2000-2018)**, highlighting significant **declines in sexual activity, particularly among young men**. The research utilized **General Social Survey data** to analyze the impact of **sociodemographic factors, employment status, and mental well-being** on sexual behavior.  ##
611 +This study surveys **expert opinions on intelligence research**, analyzing **how backgrounds, political ideologies, and media representation influence perspectives on intelligence**. The findings highlight **divisions in scientific consensus**, particularly on **genetic vs. environmental causes of IQ disparities**. Additionally, the research uncovers **widespread dissatisfaction with media portrayals of intelligence research**, pointing to **the impact of ideological biases on public discourse**.
1019 1019  
1020 -This summary provides an accessible, at-a-glance overview of the study's contributions. Please refer to the full paper for in-depth analysis.
1021 -
1022 -----
1023 -
1024 -## **📄 Download Full Study**
1025 -{{velocity}}
1026 -#set($doi = "10.1001_jamanetworkopen.2020.3833")
1027 -#set($filename = "${doi}.pdf")
1028 -#if($xwiki.exists("attach:$filename"))
1029 -[[Download>>attach:$filename]]
1030 -#else
1031 -{{html}}<span style="color: red; font-weight: bold;">🚨 PDF Not Available 🚨</span>{{/html}}
1032 -#end {{/velocity}}##
1033 -{{/expandable}}
1034 -
1035 -
1036 -== Study: Biracial Couples and Adverse Birth Outcomes – A Systematic Review and Meta-Analysis ==
1037 -
1038 -{{expandable expandByDefault="false" summary="Study: Biracial Couples and Adverse Birth Outcomes – A Systematic Review and Meta-Analysis"}}
1039 -**Source:** *Acta Obstetricia et Gynecologica Scandinavica*
1040 -**Date of Publication:** *2012*
1041 -**Author(s):** *Ravisha M. Srinivasjois, Shreya Shah, Prakesh S. Shah, Knowledge Synthesis Group on Determinants of Preterm/LBW Births*
1042 -**Title:** *"Biracial Couples and Adverse Birth Outcomes: A Systematic Review and Meta-Analysis"*
1043 -**DOI:** [10.1111/j.1600-0412.2012.01501.x](https://doi.org/10.1111/j.1600-0412.2012.01501.x)
1044 -**Subject Matter:** *Neonatal Health, Maternal-Fetal Medicine, Racial Disparities* 
1045 -
1046 -----
1047 -
1048 -## **Key Statistics**##
1049 -
1050 -1. **General Observations:**
1051 - - Meta-analysis of **26,335,596 singleton births** from eight studies.
1052 - - **Higher risk of adverse birth outcomes in biracial couples** than White couples, but lower than Black couples.
1053 -
1054 -2. **Subgroup Analysis:**
1055 - - **Maternal race had a stronger influence than paternal race** on birth outcomes.
1056 - - **Black mother–White father (BMWF) couples** had a higher risk than **White mother–Black father (WMBF) couples**.
1057 -
1058 -3. **Other Significant Data Points:**
1059 - - **Adjusted Odds Ratios (aORs) for key outcomes:**
1060 - - **Low birthweight (LBW):** WMBF (1.21), BMWF (1.75), Black mother–Black father (BMBF) (2.08).
1061 - - **Preterm births (PTB):** WMBF (1.17), BMWF (1.37), BMBF (1.78).
1062 - - **Stillbirths:** WMBF (1.43), BMWF (1.51), BMBF (1.85).
1063 -
1064 -----
1065 -
1066 -## **Findings**##
1067 -
1068 -1. **Primary Observations:**
1069 - - **Biracial couples face a gradient of risk**: higher than White couples but lower than Black couples.
1070 - - **Maternal race plays a more significant role** in pregnancy outcomes.
1071 -
1072 -2. **Subgroup Trends:**
1073 - - **Black mothers (regardless of paternal race) had the highest risk of LBW and PTB**.
1074 - - **White mothers with Black fathers had a lower risk** than Black mothers with White fathers.
1075 -
1076 -3. **Specific Case Analysis:**
1077 - - The **weathering hypothesis** suggests that **long-term stress exposure** contributes to higher adverse birth risks in Black mothers.
1078 - - **Genetic and environmental factors** may interact to influence birth outcomes.
1079 -
1080 -----
1081 -
1082 -## **Critique and Observations**##
1083 -
1084 -1. **Strengths of the Study:**
1085 - - **Largest meta-analysis** on racial disparities in birth outcomes.
1086 - - Uses **adjusted statistical models** to account for confounding variables.
1087 -
1088 -2. **Limitations of the Study:**
1089 - - Data limited to **Black-White biracial couples**, excluding other racial groups.
1090 - - **Socioeconomic and healthcare access factors** not fully explored.
1091 -
1092 -3. **Suggestions for Improvement:**
1093 - - Future studies should examine **Asian, Hispanic, and Indigenous biracial couples**.
1094 - - Investigate **long-term health effects on infants from biracial pregnancies**.
1095 -
1096 -----
1097 -
1098 -## **Relevance to Subproject**
1099 -- Provides **critical insights into racial disparities** in maternal and infant health.
1100 -- Supports **research on genetic and environmental influences on neonatal health**.
1101 -- Highlights **how maternal race plays a more significant role than paternal race** in birth outcomes.##
1102 -
1103 -----
1104 -
1105 -## **Suggestions for Further Exploration**##
1106 -
1107 -1. Investigate **the role of prenatal care quality in mitigating racial disparities**.
1108 -2. Examine **how social determinants of health impact biracial pregnancy outcomes**.
1109 -3. Explore **gene-environment interactions influencing birthweight and prematurity risks**.
1110 -
1111 -----
1112 -
1113 -## **Summary of Research Study**
1114 -This meta-analysis examines **the impact of biracial parentage on birth outcomes**, showing that **biracial couples face a higher risk of adverse pregnancy outcomes than White couples but lower than Black couples**. The findings emphasize **maternal race as a key factor in birth risks**, with **Black mothers having the highest rates of preterm birth and low birthweight, regardless of paternal race**.##
1115 -
1116 -----
1117 -
1118 -## **📄 Download Full Study**
1119 -[[Download Full Study>>attach:10.1111_j.1600-0412.2012.01501.xAbstract.pdf]]##
1120 -{{/expandable}}
1121 -
1122 -
1123 -== Study: One is the Loneliest Number: Involuntary Celibacy (Incel), Mental Health, and Loneliness ==
1124 -
1125 -{{expandable expandByDefault="false" summary="Study: One is the Loneliest Number: Involuntary Celibacy (Incel), Mental Health, and Loneliness"}}
1126 -**Source:** *Current Psychology*
1127 -**Date of Publication:** *2024*
1128 -**Author(s):** *Brandon Sparks, Alexandra M. Zidenberg, Mark E. Olver*
1129 -**Title:** *"One is the Loneliest Number: Involuntary Celibacy (Incel), Mental Health, and Loneliness"*
1130 -**DOI:** [10.1007/s12144-023-04275-z](https://doi.org/10.1007/s12144-023-04275-z)
1131 -**Subject Matter:** *Psychology, Mental Health, Social Isolation* 
1132 -
1133 -----
1134 -
1135 -## **Key Statistics**##
1136 -
1137 -1. **General Observations:**
1138 - - Study analyzed **67 self-identified incels** and **103 non-incel men**.
1139 - - Incels reported **higher loneliness and lower social support** compared to non-incels.
1140 -
1141 -2. **Subgroup Analysis:**
1142 - - Incels exhibited **higher levels of depression, anxiety, and self-critical rumination**.
1143 - - **Social isolation was a key factor** differentiating incels from non-incels.
1144 -
1145 -3. **Other Significant Data Points:**
1146 - - 95% of incels in the study reported **having depression**, with 38% receiving a formal diagnosis.
1147 - - **Higher externalization of blame** was linked to stronger incel identification.
1148 -
1149 -----
1150 -
1151 -## **Findings**##
1152 -
1153 -1. **Primary Observations:**
1154 - - Incels experience **heightened rejection sensitivity and loneliness**.
1155 - - Lack of social support correlates with **worse mental health outcomes**.
1156 -
1157 -2. **Subgroup Trends:**
1158 - - **Avoidant attachment styles** were a strong predictor of incel identity.
1159 - - **Mate value perceptions** significantly differed between incels and non-incels.
1160 -
1161 -3. **Specific Case Analysis:**
1162 - - Incels **engaged in fewer positive coping mechanisms** such as emotional support or positive reframing.
1163 - - Instead, they relied on **solitary coping strategies**, worsening their isolation.
1164 -
1165 -----
1166 -
1167 -## **Critique and Observations**##
1168 -
1169 -1. **Strengths of the Study:**
1170 - - **First quantitative study** on incels’ social isolation and mental health.
1171 - - **Robust sample size** and validated psychological measures.
1172 -
1173 -2. **Limitations of the Study:**
1174 - - Sample drawn from **Reddit communities**, which may not represent all incels.
1175 - - **No causal conclusions**—correlations between isolation and inceldom need further research.
1176 -
1177 -3. **Suggestions for Improvement:**
1178 - - Future studies should **compare incel forum users vs. non-users**.
1179 - - Investigate **potential intervention strategies** for social integration.
1180 -
1181 -----
1182 -
1183 -## **Relevance to Subproject**
1184 -- Highlights **mental health vulnerabilities** within the incel community.
1185 -- Supports research on **loneliness, attachment styles, and social dominance orientation**.
1186 -- Examines how **peer rejection influences self-perceived mate value**.##
1187 -
1188 -----
1189 -
1190 -## **Suggestions for Further Exploration**##
1191 -
1192 -1. Explore how **online community participation** affects incel mental health.
1193 -2. Investigate **cognitive biases** influencing self-perceived rejection among incels.
1194 -3. Assess **therapeutic interventions** to address incel social isolation.
1195 -
1196 -----
1197 -
1198 -## **Summary of Research Study**
1199 -This study examines the **psychological characteristics of self-identified incels**, comparing them with non-incel men in terms of **mental health, loneliness, and coping strategies**. The research found **higher depression, anxiety, and avoidant attachment styles among incels**, as well as **greater reliance on solitary coping mechanisms**. It suggests that **lack of social support plays a critical role in exacerbating incel identity and related mental health concerns**.##
1200 -
1201 1201  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1202 1202  
1203 -----
615 +---
1204 1204  
1205 1205  ## **📄 Download Full Study**
1206 -[[Download Full Study>>attach:10.1007_s12144-023-04275-z.pdf]]##
1207 -{{/expandable}}
618 +[[Download Full Study>>attach:10.1016_j.intell.2019.101406.pdf]]
1208 1208  
620 +{{/expand}}
1209 1209  
1210 -= Crime and Substance Abuse =
622 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1211 1211  
624 +{{expand title="Study: Is Homo sapiens polytypic? Human taxonomic diversity and its implications" expanded="false"}}
625 +**Source:** *Medical Hypotheses (Elsevier)*
626 +**Date of Publication:** *2010*
627 +**Author(s):** *Michael A. Woodley*
628 +**Title:** *"Is Homo sapiens polytypic? Human taxonomic diversity and its implications"*
629 +**DOI:** [10.1016/j.mehy.2009.07.046](https://doi.org/10.1016/j.mehy.2009.07.046)
630 +**Subject Matter:** *Human Taxonomy, Evolutionary Biology, Anthropology*
1212 1212  
1213 -== Study: Factors Associated with Completion of a Drug Treatment Court Diversion Program ==
632 +---
1214 1214  
1215 -{{expandable expandByDefault="false" summary="Study: Factors Associated with Completion of a Drug Treatment Court Diversion Program"}}
1216 -**Source:** *Substance Use & Misuse*
1217 -**Date of Publication:** *2002*
1218 -**Author(s):** *Clifford A. Butzin, Christine A. Saum, Frank R. Scarpitti*
1219 -**Title:** *"Factors Associated with Completion of a Drug Treatment Court Diversion Program"*
1220 -**DOI:** [10.1081/JA-120014424](https://doi.org/10.1081/JA-120014424)
1221 -**Subject Matter:** *Substance Use, Criminal Justice, Drug Courts* 
1222 -
1223 -----
1224 -
1225 -## **Key Statistics**##
1226 -
634 +## **Key Statistics**
1227 1227  1. **General Observations:**
1228 - - Study examined **drug treatment court success rates** among first-time offenders.
1229 - - Strongest predictors of **successful completion were employment status and race**.
636 + - The study argues that **Homo sapiens is polytypic**, meaning it consists of multiple subspecies rather than a single monotypic species.
637 + - Examines **genetic diversity, morphological variation, and evolutionary lineage** in humans.
1230 1230  
1231 1231  2. **Subgroup Analysis:**
1232 - - Individuals with **stable jobs were more likely to complete the program**.
1233 - - **Black participants had lower success rates**, suggesting potential systemic disparities.
640 + - Discusses **four primary definitions of race/subspecies**: Essentialist, Taxonomic, Population-based, and Lineage-based.
641 + - Suggests that **human heterozygosity levels are comparable to species that are classified as polytypic**.
1234 1234  
1235 1235  3. **Other Significant Data Points:**
1236 - - **Education level was positively correlated** with program completion.
1237 - - Frequency of **drug use before enrollment affected treatment outcomes**.
644 + - The study evaluates **FST values (genetic differentiation measure)** and argues that human genetic differentiation is comparable to that of recognized subspecies in other species.
645 + - Considers **phylogenetic species concepts** in defining human variation.
1238 1238  
1239 -----
647 +---
1240 1240  
1241 -## **Findings**##
1242 -
649 +## **Findings**
1243 1243  1. **Primary Observations:**
1244 - - **Social stability factors** (employment, education) were key to treatment success.
1245 - - **Race and pre-existing substance use patterns** influenced completion rates.
651 + - Proposes that **modern human populations meet biological criteria for subspecies classification**.
652 + - Highlights **medical and evolutionary implications** of human taxonomic diversity.
1246 1246  
1247 1247  2. **Subgroup Trends:**
1248 - - White offenders had **higher completion rates** than Black offenders.
1249 - - Drug court success was **higher for those with lower initial drug use frequency**.
655 + - Discusses **how race concepts evolved over time** in biological sciences.
656 + - Compares **human diversity with that of other primates** such as chimpanzees and gorillas.
1250 1250  
1251 1251  3. **Specific Case Analysis:**
1252 - - **Individuals with strong social ties were more likely to finish the program**.
1253 - - Success rates were **significantly higher for participants with case management support**.
659 + - Evaluates how **genetic markers correlate with population structure**.
660 + - Addresses the **controversy over race classification in modern anthropology**.
1254 1254  
1255 -----
662 +---
1256 1256  
1257 -## **Critique and Observations**##
1258 -
664 +## **Critique and Observations**
1259 1259  1. **Strengths of the Study:**
1260 - - **First empirical study on drug court program success factors**.
1261 - - Uses **longitudinal data** for post-treatment analysis.
666 + - Uses **comparative species analysis** to assess human classification.
667 + - Provides a **biological perspective** on the race concept, moving beyond social constructivism arguments.
1262 1262  
1263 1263  2. **Limitations of the Study:**
1264 - - Lacks **qualitative data on personal motivation and treatment engagement**.
1265 - - Focuses on **short-term program success** without tracking **long-term relapse rates**.
670 + - Controversial topic with **strong opposing views in anthropology and genetics**.
671 + - **Relies on broad genetic trends**, but does not analyze individual-level genetic variation in depth.
1266 1266  
1267 1267  3. **Suggestions for Improvement:**
1268 - - Future research should examine **racial disparities in drug court outcomes**.
1269 - - Study **how community resources impact long-term recovery**.
674 + - Further research should **incorporate whole-genome studies** to refine subspecies classifications.
675 + - Investigate **how admixture affects taxonomic classification over time**.
1270 1270  
1271 -----
677 +---
1272 1272  
1273 1273  ## **Relevance to Subproject**
1274 -- Provides insight into **what factors contribute to drug court program success**.
1275 -- Highlights **racial disparities in criminal justice-based rehabilitation programs**.
1276 -- Supports **policy discussions on improving access to drug treatment for marginalized groups**.##
680 +- Contributes to discussions on **evolutionary taxonomy and species classification**.
681 +- Provides evidence on **genetic differentiation among human populations**.
682 +- Highlights **historical and contemporary scientific debates on race and human variation**.
1277 1277  
1278 -----
684 +---
1279 1279  
1280 -## **Suggestions for Further Exploration**##
686 +## **Suggestions for Further Exploration**
687 +1. Examine **FST values in modern and ancient human populations**.
688 +2. Investigate how **adaptive evolution influences population differentiation**.
689 +3. Explore **the impact of genetic diversity on medical treatments and disease susceptibility**.
1281 1281  
1282 -1. Investigate **the role of mental health in drug court success rates**.
1283 -2. Assess **long-term relapse prevention strategies post-treatment**.
1284 -3. Explore **alternative diversion programs beyond traditional drug courts**.
691 +---
1285 1285  
1286 -----
1287 -
1288 1288  ## **Summary of Research Study**
1289 -This study examines **factors influencing the completion of drug treatment court programs**, identifying **employment, education, and race as key predictors**. The research underscores **systemic disparities in drug court outcomes**, emphasizing the need for **improved support systems for at-risk populations**.##
694 +This study evaluates **whether Homo sapiens should be classified as a polytypic species**, analyzing **genetic diversity, evolutionary lineage, and morphological variation**. Using comparative analysis with other primates and mammals, the research suggests that **human populations meet biological criteria for subspecies classification**, with implications for **evolutionary biology, anthropology, and medicine**.
1290 1290  
1291 1291  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1292 1292  
1293 -----
698 +---
1294 1294  
1295 1295  ## **📄 Download Full Study**
1296 -[[Download Full Study>>attach:10.1081_JA-120014424.pdf]]##
1297 -{{/expandable}}
701 +[[Download Full Study>>attach:10.1016_j.mehy.2009.07.046.pdf]]
1298 1298  
703 +{{/expand}}
1299 1299  
1300 -== Study: Cross-Cultural Sources of Measurement Error in Substance Use Surveys ==
705 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1301 1301  
1302 -{{expandable expandByDefault="false" summary="Study: Cross-Cultural Sources of Measurement Error in Substance Use Surveys"}}
1303 -**Source:** *Substance Use & Misuse*
1304 -**Date of Publication:** *2003*
1305 -**Author(s):** *Timothy P. Johnson, Phillip J. Bowman*
1306 -**Title:** *"Cross-Cultural Sources of Measurement Error in Substance Use Surveys"*
1307 -**DOI:** [10.1081/JA-120023394](https://doi.org/10.1081/JA-120023394)
1308 -**Subject Matter:** *Survey Methodology, Racial Disparities, Substance Use Research* 
707 +{{expand title="Study: The Wilson Effect: The Increase in Heritability of IQ With Age" expanded="false"}}
708 +**Source:** *Twin Research and Human Genetics (Cambridge University Press)*
709 +**Date of Publication:** *2013*
710 +**Author(s):** *Thomas J. Bouchard Jr.*
711 +**Title:** *"The Wilson Effect: The Increase in Heritability of IQ With Age"*
712 +**DOI:** [10.1017/thg.2013.54](https://doi.org/10.1017/thg.2013.54)
713 +**Subject Matter:** *Intelligence, Heritability, Developmental Psychology*
1309 1309  
1310 -----
715 +---
1311 1311  
1312 -## **Key Statistics**##
1313 -
717 +## **Key Statistics**
1314 1314  1. **General Observations:**
1315 - - Study examined **how racial and cultural factors influence self-reported substance use data**.
1316 - - Analyzed **36 empirical studies from 1977–2003** on survey reliability across racial/ethnic groups.
719 + - The study documents how the **heritability of IQ increases with age**, reaching an asymptote at **0.80 by adulthood**.
720 + - Analysis is based on **longitudinal twin and adoption studies**.
1317 1317  
1318 1318  2. **Subgroup Analysis:**
1319 - - Black and Latino respondents **were more likely to underreport drug use** compared to White respondents.
1320 - - **Cultural stigma and distrust in research institutions** affected self-report accuracy.
723 + - Shared environmental influence on IQ **declines with age**, reaching **0.10 in adulthood**.
724 + - Monozygotic twins show **increasing genetic similarity in IQ over time**, while dizygotic twins become **less concordant**.
1321 1321  
1322 1322  3. **Other Significant Data Points:**
1323 - - **Surveys using biological validation (urinalysis, hair tests) revealed underreporting trends**.
1324 - - **Higher recantation rates** (denying past drug use) were observed among minority respondents.
727 + - Data from the **Louisville Longitudinal Twin Study and cross-national twin samples** support findings.
728 + - IQ stability over time is **influenced more by genetics than by shared environmental factors**.
1325 1325  
1326 -----
730 +---
1327 1327  
1328 -## **Findings**##
1329 -
732 +## **Findings**
1330 1330  1. **Primary Observations:**
1331 - - Racial/ethnic disparities in **substance use reporting bias survey-based research**.
1332 - - **Social desirability and cultural norms impact data reliability**.
734 + - Intelligence heritability **strengthens throughout development**, contrary to early environmental models.
735 + - Shared environmental effects **decrease by late adolescence**, emphasizing **genetic influence in adulthood**.
1333 1333  
1334 -2. **Subgroup Trends:**
1335 - - White respondents were **more likely to overreport** substance use.
1336 - - Black and Latino respondents **had higher recantation rates**, particularly in face-to-face interviews.
1337 -
1338 -3. **Specific Case Analysis:**
1339 - - Mode of survey administration **significantly influenced reporting accuracy**.
1340 - - **Self-administered surveys produced more reliable data than interviewer-administered surveys**.
1341 -
1342 -----
1343 -
1344 -## **Critique and Observations**##
1345 -
1346 -1. **Strengths of the Study:**
1347 - - **Comprehensive review of 36 studies** on measurement error in substance use reporting.
1348 - - Identifies **systemic biases affecting racial/ethnic survey reliability**.
1349 -
1350 -2. **Limitations of the Study:**
1351 - - Relies on **secondary data analysis**, limiting direct experimental control.
1352 - - Does not explore **how measurement error impacts policy decisions**.
1353 -
1354 -3. **Suggestions for Improvement:**
1355 - - Future research should **incorporate mixed-method approaches** (qualitative & quantitative).
1356 - - Investigate **how survey design can reduce racial reporting disparities**.
1357 -
1358 -----
1359 -
1360 -## **Relevance to Subproject**
1361 -- Supports research on **racial disparities in self-reported health behaviors**.
1362 -- Highlights **survey methodology issues that impact substance use epidemiology**.
1363 -- Provides insights for **improving data accuracy in public health research**.##
1364 -
1365 -----
1366 -
1367 -## **Suggestions for Further Exploration**##
1368 -
1369 -1. Investigate **how survey design impacts racial disparities in self-reported health data**.
1370 -2. Study **alternative data collection methods (biometric validation, passive data tracking)**.
1371 -3. Explore **the role of social stigma in self-reported health behaviors**.
1372 -
1373 -----
1374 -
1375 -## **Summary of Research Study**
1376 -This study examines **cross-cultural biases in self-reported substance use surveys**, showing that **racial/ethnic minorities are more likely to underreport drug use** due to **social stigma, research distrust, and survey administration methods**. The findings highlight **critical issues in public health data collection and the need for improved survey design**.##
1377 -
1378 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1379 -
1380 -----
1381 -
1382 -## **📄 Download Full Study**
1383 -[[Download Full Study>>attach:10.1081_JA-120023394.pdf]]##
1384 -{{/expandable}}
1385 -
1386 -
1387 -== Study: Factors Associated with Completion of a Drug Treatment Court Diversion Program ==
1388 -
1389 -{{expandable expandByDefault="false" summary="Study: Factors Associated with Completion of a Drug Treatment Court Diversion Program"}}
1390 -**Source:** *Substance Use & Misuse*
1391 -**Date of Publication:** *2002*
1392 -**Author(s):** *Clifford A. Butzin, Christine A. Saum, Frank R. Scarpitti*
1393 -**Title:** *"Factors Associated with Completion of a Drug Treatment Court Diversion Program"*
1394 -**DOI:** [10.1081/JA-120014424](https://doi.org/10.1081/JA-120014424)
1395 -**Subject Matter:** *Substance Use, Criminal Justice, Drug Courts* 
1396 -
1397 -----
1398 -
1399 -## **Key Statistics**##
1400 -
1401 -1. **General Observations:**
1402 - - Study examined **drug treatment court success rates** among first-time offenders.
1403 - - Strongest predictors of **successful completion were employment status and race**.
1404 -
1405 -2. **Subgroup Analysis:**
1406 - - Individuals with **stable jobs were more likely to complete the program**.
1407 - - **Black participants had lower success rates**, suggesting potential systemic disparities.
1408 -
1409 -3. **Other Significant Data Points:**
1410 - - **Education level was positively correlated** with program completion.
1411 - - Frequency of **drug use before enrollment affected treatment outcomes**.
1412 -
1413 -----
1414 -
1415 -## **Findings**##
1416 -
1417 -1. **Primary Observations:**
1418 - - **Social stability factors** (employment, education) were key to treatment success.
1419 - - **Race and pre-existing substance use patterns** influenced completion rates.
1420 -
1421 1421  2. **Subgroup Trends:**
1422 - - White offenders had **higher completion rates** than Black offenders.
1423 - - Drug court success was **higher for those with lower initial drug use frequency**.
738 + - Studies from **Scotland, Netherlands, and the US** show **consistent patterns of increasing heritability with age**.
739 + - Findings hold across **varied socio-economic and educational backgrounds**.
1424 1424  
1425 1425  3. **Specific Case Analysis:**
1426 - - **Individuals with strong social ties were more likely to finish the program**.
1427 - - Success rates were **significantly higher for participants with case management support**.
742 + - Longitudinal adoption studies show **declining impact of adoptive parental influence on IQ** as children age.
743 + - Cross-sectional twin data confirm **higher IQ correlations for monozygotic twins in adulthood**.
1428 1428  
1429 -----
745 +---
1430 1430  
1431 -## **Critique and Observations**##
1432 -
747 +## **Critique and Observations**
1433 1433  1. **Strengths of the Study:**
1434 - - **First empirical study on drug court program success factors**.
1435 - - Uses **longitudinal data** for post-treatment analysis.
749 + - **Robust dataset covering multiple twin and adoption studies over decades**.
750 + - **Clear, replicable trend** demonstrating the increasing role of genetics in intelligence.
1436 1436  
1437 1437  2. **Limitations of the Study:**
1438 - - Lacks **qualitative data on personal motivation and treatment engagement**.
1439 - - Focuses on **short-term program success** without tracking **long-term relapse rates**.
753 + - Findings apply primarily to **Western industrialized nations**, limiting generalizability.
754 + - **Lack of neurobiological mechanisms** explaining how genes express their influence over time.
1440 1440  
1441 1441  3. **Suggestions for Improvement:**
1442 - - Future research should examine **racial disparities in drug court outcomes**.
1443 - - Study **how community resources impact long-term recovery**.
757 + - Future research should investigate **gene-environment interactions in cognitive aging**.
758 + - Examine **heritability trends in non-Western populations** to determine cross-cultural consistency.
1444 1444  
1445 -----
760 +---
1446 1446  
1447 1447  ## **Relevance to Subproject**
1448 -- Provides insight into **what factors contribute to drug court program success**.
1449 -- Highlights **racial disparities in criminal justice-based rehabilitation programs**.
1450 -- Supports **policy discussions on improving access to drug treatment for marginalized groups**.##
763 +- Provides **strong evidence for the genetic basis of intelligence**.
764 +- Highlights the **diminishing role of shared environment in cognitive development**.
765 +- Supports research on **cognitive aging and heritability across the lifespan**.
1451 1451  
1452 -----
767 +---
1453 1453  
1454 -## **Suggestions for Further Exploration**##
769 +## **Suggestions for Further Exploration**
770 +1. Investigate **neurogenetic pathways underlying IQ development**.
771 +2. Examine **how education and socioeconomic factors interact with genetic IQ influences**.
772 +3. Study **heritability trends in aging populations and cognitive decline**.
1455 1455  
1456 -1. Investigate **the role of mental health in drug court success rates**.
1457 -2. Assess **long-term relapse prevention strategies post-treatment**.
1458 -3. Explore **alternative diversion programs beyond traditional drug courts**.
774 +---
1459 1459  
1460 -----
1461 -
1462 1462  ## **Summary of Research Study**
1463 -This study examines **factors influencing the completion of drug treatment court programs**, identifying **employment, education, and race as key predictors**. The research underscores **systemic disparities in drug court outcomes**, emphasizing the need for **improved support systems for at-risk populations**.##
777 +This study documents **The Wilson Effect**, demonstrating how the **heritability of IQ increases throughout development**, reaching a plateau of **0.80 by adulthood**. The findings indicate that **shared environmental effects diminish with age**, while **genetic influences on intelligence strengthen**. Using **longitudinal twin and adoption data**, the research provides **strong empirical support for the increasing role of genetics in cognitive ability over time**.
1464 1464  
1465 1465  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1466 1466  
1467 -----
781 +---
1468 1468  
1469 1469  ## **📄 Download Full Study**
1470 -[[Download Full Study>>attach:10.1081_JA-120014424.pdf]]##
1471 -{{/expandable}}
784 +[[Download Full Study>>attach:10.1017_thg.2013.54.pdf]]
1472 1472  
786 +{{/expand}}
1473 1473  
1474 -== Study: Associations Between Cannabis Use and Mental Health Symptoms in Young Adults ==
788 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1475 1475  
1476 -{{expandable expandByDefault="false" summary="Study: Associations Between Cannabis Use and Mental Health Symptoms in Young Adults"}}
1477 - Source: Addictive Behaviors
1478 -Date of Publication: 2016
1479 -Author(s): Andrea Hussong, Christy Capron, Gregory T. Smith, Jennifer L. Maggs
1480 -Title: "Associations Between Cannabis Use and Mental Health Symptoms in Young Adults"
1481 -DOI: 10.1016/j.addbeh.2016.02.030
1482 -Subject Matter: Substance Use, Mental Health, Adolescent Development
1483 -
1484 -Key Statistics
1485 -General Observations:
1486 -
1487 -Study examined cannabis use trends in young adults over time.
1488 -Found significant correlations between cannabis use and increased depressive symptoms.
1489 -Subgroup Analysis:
1490 -
1491 -Males exhibited higher rates of cannabis use, but females reported stronger mental health impacts.
1492 -Individuals with pre-existing anxiety disorders were more likely to report problematic cannabis use.
1493 -Other Significant Data Points:
1494 -
1495 -Frequent cannabis users showed a 23% higher likelihood of developing anxiety symptoms.
1496 -Co-occurring substance use (e.g., alcohol) exacerbated negative psychological effects.
1497 -Findings
1498 -Primary Observations:
1499 -
1500 -Cannabis use was linked to higher depressive and anxiety symptoms, particularly in frequent users.
1501 -Self-medication patterns emerged among those with pre-existing mental health conditions.
1502 -Subgroup Trends:
1503 -
1504 -Early cannabis initiation (before age 16) was associated with greater mental health risks.
1505 -College-aged users reported more impairments in daily functioning due to cannabis use.
1506 -Specific Case Analysis:
1507 -
1508 -Participants with a history of childhood trauma were twice as likely to develop problematic cannabis use.
1509 -Co-use of cannabis and alcohol significantly increased impulsivity scores in the study sample.
1510 -Critique and Observations
1511 -Strengths of the Study:
1512 -
1513 -Large, longitudinal dataset with a diverse sample of young adults.
1514 -Controlled for confounding variables like socioeconomic status and prior substance use.
1515 -Limitations of the Study:
1516 -
1517 -Self-reported cannabis use may introduce bias in reported frequency and effects.
1518 -Did not assess specific THC potency levels, which could influence mental health outcomes.
1519 -Suggestions for Improvement:
1520 -
1521 -Future research should investigate dose-dependent effects of cannabis on mental health.
1522 -Assess long-term psychological outcomes of early cannabis exposure.
1523 -Relevance to Subproject
1524 -Supports mental health risk assessment models related to substance use.
1525 -Highlights gender differences in substance-related psychological impacts.
1526 -Provides insight into self-medication behaviors among young adults.
1527 -Suggestions for Further Exploration
1528 -Investigate the long-term impact of cannabis use on neurodevelopment.
1529 -Examine the role of genetic predisposition in cannabis-related mental health risks.
1530 -Assess regional differences in cannabis use trends post-legalization.
1531 -Summary of Research Study
1532 -This study examines the relationship between cannabis use and mental health symptoms in young adults, focusing on depressive and anxiety-related outcomes. Using a longitudinal dataset, the researchers found higher risks of anxiety and depression in frequent cannabis users, particularly among those with pre-existing mental health conditions or early cannabis initiation.
1533 -
1534 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1535 -
1536 -📄 Download Full Study
1537 -[[Download Full Study>>attach:10.1016_j.addbeh.2016.02.030.pdf]]
1538 -{{/expandable}}
1539 -
1540 -
1541 -== Study: Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time? ==
1542 -
1543 -{{expandable expandByDefault="false" summary="Study: Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?"}}
1544 -**Source:** *Intelligence (Elsevier)*
1545 -**Date of Publication:** *2014*
1546 -**Author(s):** *Michael A. Woodley, Jan te Nijenhuis, Raegan Murphy*
1547 -**Title:** *"Is there a Dysgenic Secular Trend Towards Slowing Simple Reaction Time?"*
1548 -**DOI:** [10.1016/j.intell.2014.05.012](https://doi.org/10.1016/j.intell.2014.05.012)
1549 -**Subject Matter:** *Cognitive Decline, Intelligence, Dysgenics* 
1550 -
1551 -----
1552 -
1553 -## **Key Statistics**##
1554 -
1555 -1. **General Observations:**
1556 - - The study examines reaction time data from **13 age-matched studies** spanning **1884–2004**.
1557 - - Results suggest an estimated **decline of 13.35 IQ points** over this period.
1558 -
1559 -2. **Subgroup Analysis:**
1560 - - The study found **slower reaction times in modern populations** compared to Victorian-era individuals.
1561 - - Data from **Western countries (US, UK, Canada, Australia, Finland)** were analyzed.
1562 -
1563 -3. **Other Significant Data Points:**
1564 - - The estimated **dysgenic rate is 1.21 IQ points lost per decade**.
1565 - - Meta-regression analysis confirmed a **steady secular trend in slowing reaction time**.
1566 -
1567 -----
1568 -
1569 -## **Findings**##
1570 -
1571 -1. **Primary Observations:**
1572 - - Supports the hypothesis of **intelligence decline due to genetic and environmental factors**.
1573 - - Reaction time, a **biomarker for cognitive ability**, has slowed significantly over time.
1574 -
1575 -2. **Subgroup Trends:**
1576 - - A stronger **correlation between slower reaction time and lower general intelligence (g)**.
1577 - - Flynn effect (IQ gains) does not contradict this finding, as reaction time is a **biological, not environmental, measure**.
1578 -
1579 -3. **Specific Case Analysis:**
1580 - - Cross-national comparisons indicate a **global trend in slower reaction times**.
1581 - - Factors like **modern neurotoxin exposure** and **reduced selective pressure for intelligence** may contribute.
1582 -
1583 -----
1584 -
1585 -## **Critique and Observations**##
1586 -
1587 -1. **Strengths of the Study:**
1588 - - **Comprehensive meta-analysis** covering over a century of reaction time data.
1589 - - **Robust statistical corrections** for measurement variance between historical and modern studies.
1590 -
1591 -2. **Limitations of the Study:**
1592 - - Some historical data sources **lack methodological consistency**.
1593 - - **Reaction time measurements vary by study**, requiring adjustments for equipment differences.
1594 -
1595 -3. **Suggestions for Improvement:**
1596 - - Future studies should **replicate results with more modern datasets**.
1597 - - Investigate **alternative cognitive biomarkers** for intelligence over time.
1598 -
1599 -----
1600 -
1601 -## **Relevance to Subproject**
1602 -- Provides evidence for **long-term intelligence trends**, contributing to research on **cognitive evolution**.
1603 -- Aligns with broader discussions on **dysgenics, neurophysiology, and cognitive load**.
1604 -- Supports the argument that **modern societies may be experiencing intelligence decline**.##
1605 -
1606 -----
1607 -
1608 -## **Suggestions for Further Exploration**##
1609 -
1610 -1. Investigate **genetic markers associated with reaction time** and intelligence decline.
1611 -2. Examine **regional variations in reaction time trends**.
1612 -3. Explore **cognitive resilience factors that counteract the decline**.
1613 -
1614 -----
1615 -
1616 -## **Summary of Research Study**
1617 -This study examines **historical reaction time data** as a measure of **cognitive ability and intelligence decline**, analyzing data from **Western populations between 1884 and 2004**. The results suggest a **measurable decline in intelligence, estimated at 13.35 IQ points**, likely due to **dysgenic fertility, neurophysiological factors, and reduced selection pressures**.  ##
1618 -
1619 -This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1620 -
1621 -----
1622 -
1623 -## **📄 Download Full Study**
1624 -[[Download Full Study>>attach:10.1016_j.intell.2014.05.012.pdf]]##
1625 -{{/expandable}}
1626 -
1627 -
1628 -= Whiteness & White Guilt =
1629 -
1630 -== Study: Segregation, Innocence, and Protection: The Institutional Conditions That Maintain Whiteness in College Sports ==
1631 -
1632 -{{expandable expandByDefault="false" summary="Study: Segregation, Innocence, and Protection: The Institutional Conditions That Maintain Whiteness in College Sports"}}
790 +{{expand title="Study: Segregation, Innocence, and Protection: The Institutional Conditions That Maintain Whiteness in College Sports" expanded="false"}}
1633 1633  **Source:** *Journal of Diversity in Higher Education*
1634 1634  **Date of Publication:** *2019*
1635 1635  **Author(s):** *Kirsten Hextrum*
1636 1636  **Title:** *"Segregation, Innocence, and Protection: The Institutional Conditions That Maintain Whiteness in College Sports"*
1637 1637  **DOI:** [10.1037/dhe0000140](https://doi.org/10.1037/dhe0000140)
1638 -**Subject Matter:** *Race and Sports, Higher Education, Institutional Racism* 
796 +**Subject Matter:** *Race and Sports, Higher Education, Institutional Racism*
1639 1639  
1640 -----
798 +---
1641 1641  
1642 -## **Key Statistics**##
1643 -
800 +## **Key Statistics**
1644 1644  1. **General Observations:**
1645 1645   - Analyzed **47 college athlete narratives** to explore racial disparities in non-revenue sports.
1646 1646   - Found three interrelated themes: **racial segregation, racial innocence, and racial protection**.
... ... @@ -1653,10 +1653,9 @@
1653 1653   - White athletes are **socialized to remain unaware of racial privilege** in their athletic careers.
1654 1654   - Media and institutional narratives protect white athletes from discussions on race and systemic inequities.
1655 1655  
1656 -----
813 +---
1657 1657  
1658 -## **Findings**##
1659 -
815 +## **Findings**
1660 1660  1. **Primary Observations:**
1661 1661   - Colleges **actively recruit white athletes** from majority-white communities.
1662 1662   - Institutional policies **uphold whiteness** by failing to challenge racial biases in recruitment and team culture.
... ... @@ -1669,10 +1669,9 @@
1669 1669   - Examines **how sports serve as a mechanism for maintaining racial privilege** in higher education.
1670 1670   - Discusses the **role of athletics in reinforcing systemic segregation and exclusion**.
1671 1671  
1672 -----
828 +---
1673 1673  
1674 -## **Critique and Observations**##
1675 -
830 +## **Critique and Observations**
1676 1676  1. **Strengths of the Study:**
1677 1677   - **Comprehensive qualitative analysis** of race in college sports.
1678 1678   - Examines **institutional conditions** that sustain racial disparities in athletics.
... ... @@ -1685,549 +1685,451 @@
1685 1685   - Future research should **compare recruitment policies across different sports and divisions**.
1686 1686   - Investigate **how athletic scholarships contribute to racial inequities in higher education**.
1687 1687  
1688 -----
843 +---
1689 1689  
1690 1690  ## **Relevance to Subproject**
1691 1691  - Provides evidence of **systemic racial biases** in college sports recruitment.
1692 1692  - Highlights **how institutional policies protect whiteness** in non-revenue athletics.
1693 -- Supports research on **diversity, equity, and inclusion (DEI) efforts in sports and education**.##
848 +- Supports research on **diversity, equity, and inclusion (DEI) efforts in sports and education**.
1694 1694  
1695 -----
850 +---
1696 1696  
1697 -## **Suggestions for Further Exploration**##
1698 -
852 +## **Suggestions for Further Exploration**
1699 1699  1. Investigate how **racial stereotypes influence college athlete recruitment**.
1700 1700  2. Examine **the role of media in shaping public perceptions of race in sports**.
1701 1701  3. Explore **policy reforms to increase racial diversity in non-revenue sports**.
1702 1702  
1703 -----
857 +---
1704 1704  
1705 1705  ## **Summary of Research Study**
1706 -This study explores how **racial segregation, innocence, and protection** sustain whiteness in college sports. By analyzing **47 athlete narratives**, the research reveals **how predominantly white sports programs recruit and retain white athletes** while shielding them from discussions on race. The findings highlight **institutional biases that maintain racial privilege in athletics**, offering critical insight into the **structural inequalities in higher education sports programs**.##
860 +This study explores how **racial segregation, innocence, and protection** sustain whiteness in college sports. By analyzing **47 athlete narratives**, the research reveals **how predominantly white sports programs recruit and retain white athletes** while shielding them from discussions on race. The findings highlight **institutional biases that maintain racial privilege in athletics**, offering critical insight into the **structural inequalities in higher education sports programs**.
1707 1707  
1708 1708  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1709 1709  
1710 -----
864 +---
1711 1711  
1712 1712  ## **📄 Download Full Study**
1713 -[[Download Full Study>>attach:10.1037_dhe0000140.pdf]]##
1714 -{{/expandable}}
867 +[[Download Full Study>>attach:10.1037_dhe0000140.pdf]]
1715 1715  
869 +{{/expand}}
1716 1716  
1717 -== Study: Racial Bias in Pain Assessment and Treatment Recommendations ==
871 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1718 1718  
1719 -{{expandable expandByDefault="false" summary="Study: Racial Bias in Pain Assessment and Treatment Recommendations"}}
1720 -**Source:** *Proceedings of the National Academy of Sciences (PNAS)*
1721 -**Date of Publication:** *2016*
1722 -**Author(s):** *Kelly M. Hoffman, Sophie Trawalter, Jordan R. Axta, M. Norman Oliver*
1723 -**Title:** *"Racial Bias in Pain Assessment and Treatment Recommendations, and False Beliefs About Biological Differences Between Blacks and Whites"*
1724 -**DOI:** [10.1073/pnas.1516047113](https://doi.org/10.1073/pnas.1516047113)
1725 -**Subject Matter:** *Health Disparities, Racial Bias, Medical Treatment* 
873 +{{expand title="Study: Reconstructing Indian Population History" expanded="false"}}
874 +**Source:** *Nature*
875 +**Date of Publication:** *2009*
876 +**Author(s):** *David Reich, Kumarasamy Thangaraj, Nick Patterson, Alkes L. Price, Lalji Singh*
877 +**Title:** *"Reconstructing Indian Population History"*
878 +**DOI:** [10.1038/nature08365](https://doi.org/10.1038/nature08365)
879 +**Subject Matter:** *Genetics, Population History, South Asian Ancestry*
1726 1726  
1727 -----
881 +---
1728 1728  
1729 -## **Key Statistics**##
1730 -
883 +## **Key Statistics**
1731 1731  1. **General Observations:**
1732 - - Study analyzed **racial disparities in pain perception and treatment recommendations**.
1733 - - Found that **white laypeople and medical students endorsed false beliefs about biological differences** between Black and white individuals.
885 + - Study analyzed **132 individuals from 25 diverse Indian groups**.
886 + - Identified two major ancestral populations: **Ancestral North Indians (ANI)** and **Ancestral South Indians (ASI)**.
1734 1734  
1735 1735  2. **Subgroup Analysis:**
1736 - - **50% of medical students surveyed endorsed at least one false belief about biological differences**.
1737 - - Participants who held these false beliefs were **more likely to underestimate Black patients’ pain levels**.
889 + - ANI ancestry is closely related to **Middle Easterners, Central Asians, and Europeans**.
890 + - ASI ancestry is **genetically distinct from ANI and East Asians**.
1738 1738  
1739 1739  3. **Other Significant Data Points:**
1740 - - **Black patients were less likely to receive appropriate pain treatment** compared to white patients.
1741 - - The study confirmed that **historical misconceptions about racial differences still persist in modern medicine**.
893 + - ANI ancestry ranges from **39% to 71%** across Indian groups.
894 + - **Caste and linguistic differences** strongly correlate with genetic variation.
1742 1742  
1743 -----
896 +---
1744 1744  
1745 -## **Findings**##
1746 -
898 +## **Findings**
1747 1747  1. **Primary Observations:**
1748 - - False beliefs about biological racial differences **correlate with racial disparities in pain treatment**.
1749 - - Medical students and residents who endorsed these beliefs **showed greater racial bias in treatment recommendations**.
900 + - The genetic landscape of India has been shaped by **thousands of years of endogamy**.
901 + - Groups with **only ASI ancestry no longer exist** in mainland India.
1750 1750  
1751 1751  2. **Subgroup Trends:**
1752 - - Physicians who **did not endorse these beliefs** showed **no racial bias** in treatment recommendations.
1753 - - Bias was **strongest among first-year medical students** and decreased slightly in later years of training.
904 + - **Higher ANI ancestry in upper-caste and Indo-European-speaking groups**.
905 + - **Andaman Islanders** are unique in having **ASI ancestry without ANI influence**.
1754 1754  
1755 1755  3. **Specific Case Analysis:**
1756 - - Study participants **underestimated Black patients' pain and recommended less effective pain treatments**.
1757 - - The study suggests that **racial disparities in medical care stem, in part, from these enduring false beliefs**.
908 + - **Founder effects** have maintained allele frequency differences among Indian groups.
909 + - Predicts **higher incidence of recessive diseases** due to historical genetic isolation.
1758 1758  
1759 -----
911 +---
1760 1760  
1761 -## **Critique and Observations**##
1762 -
913 +## **Critique and Observations**
1763 1763  1. **Strengths of the Study:**
1764 - - **First empirical study to connect false racial beliefs with medical decision-making**.
1765 - - Utilizes a **large sample of medical students and residents** from diverse institutions.
915 + - **First large-scale genetic analysis** of Indian population history.
916 + - Introduces **new methods for ancestry estimation without direct ancestral reference groups**.
1766 1766  
1767 1767  2. **Limitations of the Study:**
1768 - - The study focuses on **Black vs. white disparities**, leaving other racial/ethnic groups unexplored.
1769 - - Participants' responses were based on **hypothetical medical cases, not real-world treatment decisions**.
919 + - Limited **sample size relative to India's population diversity**.
920 + - Does not include **recent admixture events** post-colonial era.
1770 1770  
1771 1771  3. **Suggestions for Improvement:**
1772 - - Future research should examine **how these biases manifest in real clinical settings**.
1773 - - Investigate **whether medical training can correct these biases over time**.
923 + - Future research should **expand sampling across more Indian tribal groups**.
924 + - Use **whole-genome sequencing** for finer resolution of ancestry.
1774 1774  
1775 -----
926 +---
1776 1776  
1777 1777  ## **Relevance to Subproject**
1778 -- Highlights **racial disparities in healthcare**, specifically in pain assessment and treatment.
1779 -- Supports **research on implicit bias and its impact on medical outcomes**.
1780 -- Provides evidence for **the need to address racial bias in medical education**.##
929 +- Provides a **genetic basis for caste and linguistic diversity** in India.
930 +- Highlights **founder effects and genetic drift** shaping South Asian populations.
931 +- Supports research on **medical genetics and disease risk prediction** in Indian populations.
1781 1781  
1782 -----
933 +---
1783 1783  
1784 -## **Suggestions for Further Exploration**##
935 +## **Suggestions for Further Exploration**
936 +1. Examine **genetic markers linked to disease susceptibility** in Indian subpopulations.
937 +2. Investigate the impact of **recent migration patterns on ANI-ASI ancestry distribution**.
938 +3. Study **gene flow between Indian populations and other global groups**.
1785 1785  
1786 -1. Investigate **interventions to reduce racial bias in medical decision-making**.
1787 -2. Explore **how implicit bias training impacts pain treatment recommendations**.
1788 -3. Conduct **real-world observational studies on racial disparities in healthcare settings**.
940 +---
1789 1789  
1790 -----
1791 -
1792 1792  ## **Summary of Research Study**
1793 -This study examines **racial bias in pain perception and treatment** among **white laypeople and medical professionals**, demonstrating that **false beliefs about biological differences contribute to disparities in pain management**. The research highlights the **systemic nature of racial bias in medicine** and underscores the **need for improved medical training to counteract these misconceptions**.##
943 +This study reconstructs **the genetic history of India**, revealing two ancestral populations**ANI (related to West Eurasians) and ASI (distinctly South Asian)**. By analyzing **25 diverse Indian groups**, the researchers demonstrate how **historical endogamy and founder effects** have maintained genetic differentiation. The findings have **implications for medical genetics, population history, and the study of South Asian ancestry**.
1794 1794  
1795 1795  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1796 1796  
1797 -----
947 +---
1798 1798  
1799 1799  ## **📄 Download Full Study**
1800 -[[Download Full Study>>attach:10.1073_pnas.1516047113.pdf]]##
1801 -{{/expandable}}
950 +[[Download Full Study>>attach:10.1038_nature08365.pdf]]
1802 1802  
952 +{{/expand}}
1803 1803  
1804 -== Study: Rising Morbidity and Mortality in Midlife Among White Non-Hispanic Americans ==
954 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1805 1805  
1806 -{{expandable expandByDefault="false" summary="Study: Rising Morbidity and Mortality in Midlife Among White Non-Hispanic Americans"}}
1807 -**Source:** *Proceedings of the National Academy of Sciences (PNAS)*
1808 -**Date of Publication:** *2015*
1809 -**Author(s):** *Anne Case, Angus Deaton*
1810 -**Title:** *"Rising Morbidity and Mortality in Midlife Among White Non-Hispanic Americans in the 21st Century"*
1811 -**DOI:** [10.1073/pnas.1518393112](https://doi.org/10.1073/pnas.1518393112)
1812 -**Subject Matter:** *Public Health, Mortality, Socioeconomic Factors* 
1813 1813  
1814 -----
957 +{{expand title="Study: The Simons Genome Diversity Project: 300 Genomes from 142 Diverse Populations" expanded="false"}}
958 +**Source:** *Nature*
959 +**Date of Publication:** *2016*
960 +**Author(s):** *David Reich, Swapan Mallick, Heng Li, Mark Lipson, and others*
961 +**Title:** *"The Simons Genome Diversity Project: 300 Genomes from 142 Diverse Populations"*
962 +**DOI:** [10.1038/nature18964](https://doi.org/10.1038/nature18964)
963 +**Subject Matter:** *Human Genetic Diversity, Population History, Evolutionary Genomics*
1815 1815  
1816 -## **Key Statistics**##
965 +---
1817 1817  
967 +## **Key Statistics**
1818 1818  1. **General Observations:**
1819 - - Mortality rates among **middle-aged white non-Hispanic Americans (ages 45–54)** increased from 1999 to 2013.
1820 - - This reversal in mortality trends is unique to the U.S.; **no other wealthy country experienced a similar rise**.
969 + - Analyzed **high-coverage genome sequences of 300 individuals from 142 populations**.
970 + - Included **many underrepresented and indigenous groups** from Africa, Asia, Europe, and the Americas.
1821 1821  
1822 1822  2. **Subgroup Analysis:**
1823 - - The increase was **most pronounced among those with a high school education or less**.
1824 - - Hispanic and Black non-Hispanic mortality continued to decline over the same period.
973 + - Found **higher genetic diversity within African populations** compared to non-African groups.
974 + - Showed **Neanderthal and Denisovan ancestry in non-African populations**, particularly in Oceania.
1825 1825  
1826 1826  3. **Other Significant Data Points:**
1827 - - Rising mortality was driven primarily by **suicide, drug and alcohol poisoning, and chronic liver disease**.
1828 - - Midlife morbidity increased as well, with more reports of **poor health, pain, and mental distress**.
977 + - Identified **5.8 million base pairs absent from the human reference genome**.
978 + - Estimated that **mutations have accumulated 5% faster in non-Africans than in Africans**.
1829 1829  
1830 -----
980 +---
1831 1831  
1832 -## **Findings**##
1833 -
982 +## **Findings**
1834 1834  1. **Primary Observations:**
1835 - - The rise in mortality is attributed to **substance abuse, economic distress, and deteriorating mental health**.
1836 - - The increase in **suicides and opioid overdoses parallels broader socioeconomic decline**.
984 + - **African populations harbor the greatest genetic diversity**, confirming an out-of-Africa dispersal model.
985 + - Indigenous Australians and New Guineans **share a common ancestral population with other non-Africans**.
1837 1837  
1838 1838  2. **Subgroup Trends:**
1839 - - The **largest mortality increases** occurred among **whites without a college degree**.
1840 - - Chronic pain, functional limitations, and self-reported mental distress **rose significantly in affected groups**.
988 + - **Lower heterozygosity in non-Africans** due to founder effects from migration bottlenecks.
989 + - **Denisovan ancestry in South Asians is higher than previously thought**.
1841 1841  
1842 1842  3. **Specific Case Analysis:**
1843 - - **Educational attainment was a major predictor of mortality trends**, with better-educated individuals experiencing lower mortality rates.
1844 - - Mortality among **white Americans with a college degree continued to decline**, resembling trends in other wealthy nations.
992 + - **Neanderthal ancestry is higher in East Asians than in Europeans**.
993 + - African hunter-gatherer groups show **deep population splits over 100,000 years ago**.
1845 1845  
1846 -----
995 +---
1847 1847  
1848 -## **Critique and Observations**##
1849 -
997 +## **Critique and Observations**
1850 1850  1. **Strengths of the Study:**
1851 - - **First major study to highlight rising midlife mortality among U.S. whites**.
1852 - - Uses **CDC and Census mortality data spanning over a decade**.
999 + - **Largest global genetic dataset** outside of the 1000 Genomes Project.
1000 + - High sequencing depth allows **more accurate identification of genetic variants**.
1853 1853  
1854 1854  2. **Limitations of the Study:**
1855 - - Does not establish **causality** between economic decline and increased mortality.
1856 - - Lacks **granular data on opioid prescribing patterns and regional differences**.
1003 + - **Limited sample sizes for some populations**, restricting generalizability.
1004 + - Lacks ancient DNA comparisons, making it difficult to reconstruct deep ancestry fully.
1857 1857  
1858 1858  3. **Suggestions for Improvement:**
1859 - - Future studies should explore **how economic shifts, healthcare access, and mental health treatment contribute to these trends**.
1860 - - Further research on **racial and socioeconomic disparities in mortality trends** is needed.
1007 + - Future studies should include **ancient genomes** to improve demographic modeling.
1008 + - Expand research into **how genetic variation affects health outcomes** across populations.
1861 1861  
1862 -----
1010 +---
1863 1863  
1864 1864  ## **Relevance to Subproject**
1865 -- Highlights **socioeconomic and racial disparities** in health outcomes.
1866 -- Supports research on **substance abuse and mental health crises in the U.S.**.
1867 -- Provides evidence for **the role of economic instability in public health trends**.##
1013 +- Provides **comprehensive data on human genetic diversity**, useful for **evolutionary studies**.
1014 +- Supports research on **Neanderthal and Denisovan introgression** in modern human populations.
1015 +- Enhances understanding of **genetic adaptation and disease susceptibility across groups**.
1868 1868  
1869 -----
1017 +---
1870 1870  
1871 -## **Suggestions for Further Exploration**##
1019 +## **Suggestions for Further Exploration**
1020 +1. Investigate **functional consequences of genetic variation in underrepresented populations**.
1021 +2. Study **how selection pressures shaped genetic diversity across different environments**.
1022 +3. Explore **medical applications of population-specific genetic markers**.
1872 1872  
1873 -1. Investigate **regional differences in rising midlife mortality**.
1874 -2. Examine the **impact of the opioid crisis on long-term health trends**.
1875 -3. Study **policy interventions aimed at reversing rising mortality rates**.
1024 +---
1876 1876  
1877 -----
1878 -
1879 1879  ## **Summary of Research Study**
1880 -This study documents a **reversal in mortality trends among middle-aged white non-Hispanic Americans**, showing an increase in **suicide, drug overdoses, and alcohol-related deaths** from 1999 to 2013. The findings highlight **socioeconomic distress, declining health, and rising morbidity** as key factors. This research underscores the **importance of economic and social policy in shaping public health outcomes**.##
1027 +This study presents **high-coverage genome sequences from 300 individuals across 142 populations**, offering **new insights into global genetic diversity and human evolution**. The findings highlight **deep African population splits, widespread archaic ancestry in non-Africans, and unique variants absent from the human reference genome**. The research enhances our understanding of **migration patterns, adaptation, and evolutionary history**.
1881 1881  
1882 1882  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1883 1883  
1884 -----
1031 +---
1885 1885  
1886 1886  ## **📄 Download Full Study**
1887 -[[Download Full Study>>attach:10.1073_pnas.1518393112.pdf]]##
1888 -{{/expandable}}
1034 +[[Download Full Study>>attach:10.1038_nature18964.pdf]]
1889 1889  
1036 +{{/expand}}
1890 1890  
1891 -== Study: How Do People Without Migration Background Experience and Impact Today’s Superdiverse Cities? ==
1038 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1892 1892  
1893 -{{expandable expandByDefault="false" summary="Study: How Do People Without Migration Background Experience and Impact Todays Superdiverse Cities?"}}
1894 -**Source:** *Journal of Ethnic and Migration Studies*
1895 -**Date of Publication:** *2023*
1896 -**Author(s):** *Maurice Crul, Frans Lelie, Elif Keskiner, Laure Michon, Ismintha Waldring*
1897 -**Title:** *"How Do People Without Migration Background Experience and Impact Today’s Superdiverse Cities?"*
1898 -**DOI:** [10.1080/1369183X.2023.2182548](https://doi.org/10.1080/1369183X.2023.2182548)
1899 -**Subject Matter:** *Urban Sociology, Migration Studies, Integration* 
1040 +{{expand title="Study: Meta-analysis of the heritability of human traits based on fifty years of twin studies" expanded="false"}}
1041 +**Source:** *Nature Genetics*
1042 +**Date of Publication:** *2015*
1043 +**Author(s):** *Tinca J. C. Polderman, Beben Benyamin, Christiaan A. de Leeuw, Patrick F. Sullivan, Arjen van Bochoven, Peter M. Visscher, Danielle Posthuma*
1044 +**Title:** *"Meta-analysis of the heritability of human traits based on fifty years of twin studies"*
1045 +**DOI:** [10.1038/ng.328](https://doi.org/10.1038/ng.328)
1046 +**Subject Matter:** *Genetics, Heritability, Twin Studies, Behavioral Science*
1900 1900  
1901 -----
1048 +---
1902 1902  
1903 -## **Key Statistics**##
1904 -
1050 +## **Key Statistics**
1905 1905  1. **General Observations:**
1906 - - Study examines the role of **people without migration background** in majority-minority cities.
1907 - - Analyzes **over 3,000 survey responses and 150 in-depth interviews** from six North-Western European cities.
1052 + - Analyzed **17,804 traits from 2,748 twin studies** published between **1958 and 2012**.
1053 + - Included data from **14,558,903 twin pairs**, making it the largest meta-analysis on human heritability.
1908 1908  
1909 1909  2. **Subgroup Analysis:**
1910 - - Explores differences in **integration, social interactions, and perceptions of diversity**.
1911 - - Studies how **class, education, and neighborhood composition** affect adaptation to urban diversity.
1056 + - Found **49% average heritability** across all traits.
1057 + - **69% of traits follow a simple additive genetic model**, meaning most variance is due to genes, not environment.
1912 1912  
1913 1913  3. **Other Significant Data Points:**
1914 - - The study introduces the **Becoming a Minority (BaM) project**, a large-scale investigation of urban demographic shifts.
1915 - - **People without migration background perceive diversity differently**, with some embracing and others resisting change.
1060 + - **Neurological, metabolic, and psychiatric traits** showed the highest heritability estimates.
1061 + - Traits related to **social values and environmental interactions** had lower heritability estimates.
1916 1916  
1917 -----
1063 +---
1918 1918  
1919 -## **Findings**##
1920 -
1065 +## **Findings**
1921 1921  1. **Primary Observations:**
1922 - - The study **challenges traditional integration theories**, arguing that non-migrant groups also undergo adaptation processes.
1923 - - Some residents **struggle with demographic changes**, while others see diversity as an asset.
1067 + - Across all traits, genetic factors play a significant role in individual differences.
1068 + - The study contradicts models that **overestimate environmental effects in behavioral and cognitive traits**.
1924 1924  
1925 1925  2. **Subgroup Trends:**
1926 - - Young, educated individuals in urban areas **are more open to cultural diversity**.
1927 - - Older and less mobile residents **report feelings of displacement and social isolation**.
1071 + - **Eye and brain-related traits showed the highest heritability (~70-80%)**.
1072 + - **Shared environmental effects were negligible (<10%) for most traits**.
1928 1928  
1929 1929  3. **Specific Case Analysis:**
1930 - - Examines how **people without migration background navigate majority-minority settings** in cities like Amsterdam and Vienna.
1931 - - Analyzes **whether former ethnic majority groups now perceive themselves as minorities**.
1075 + - Twin correlations suggest **limited evidence for strong non-additive genetic influences**.
1076 + - The study highlights **missing heritability in complex traits**, which genome-wide association studies (GWAS) have yet to fully explain.
1932 1932  
1933 -----
1078 +---
1934 1934  
1935 -## **Critique and Observations**##
1936 -
1080 +## **Critique and Observations**
1937 1937  1. **Strengths of the Study:**
1938 - - **Innovative approach** by examining the impact of migration on native populations.
1939 - - Uses **both qualitative and quantitative data** for robust analysis.
1082 + - **Largest-ever heritability meta-analysis**, covering nearly all published twin studies.
1083 + - Provides a **comprehensive framework for understanding gene-environment contributions**.
1940 1940  
1941 1941  2. **Limitations of the Study:**
1942 - - Limited to **Western European urban settings**, missing perspectives from other global regions.
1943 - - Does not fully explore **policy interventions for fostering social cohesion**.
1086 + - **Underrepresentation of African, South American, and Asian twin cohorts**, limiting global generalizability.
1087 + - Cannot **fully separate genetic influences from potential cultural/environmental confounders**.
1944 1944  
1945 1945  3. **Suggestions for Improvement:**
1946 - - Expand research to **other geographical contexts** to understand migration effects globally.
1947 - - Investigate **long-term trends in urban adaptation and community building**.
1090 + - Future research should use **whole-genome sequencing** for finer-grained heritability estimates.
1091 + - **Incorporate non-Western populations** to assess global heritability trends.
1948 1948  
1949 -----
1093 +---
1950 1950  
1951 1951  ## **Relevance to Subproject**
1952 -- Provides a **new perspective on urban integration**, shifting focus from migrants to native-born populations.
1953 -- Highlights the **role of social and economic power in shaping urban diversity outcomes**.
1954 -- Challenges existing **assimilation theories by showing bidirectional adaptation in diverse cities**.##
1096 +- Establishes a **quantitative benchmark for heritability across human traits**.
1097 +- Reinforces **genetic influence on cognitive, behavioral, and physical traits**.
1098 +- Highlights the need for **genome-wide studies to identify missing heritability**.
1955 1955  
1956 -----
1100 +---
1957 1957  
1958 -## **Suggestions for Further Exploration**##
1102 +## **Suggestions for Further Exploration**
1103 +1. Investigate how **heritability estimates compare across different socioeconomic backgrounds**.
1104 +2. Examine **gene-environment interactions in cognitive and psychiatric traits**.
1105 +3. Explore **non-additive genetic effects on human traits using newer statistical models**.
1959 1959  
1960 -1. Study how **local policies shape attitudes toward urban diversity**.
1961 -2. Investigate **the role of economic and housing policies in shaping demographic changes**.
1962 -3. Explore **how social networks influence perceptions of migration and diversity**.
1107 +---
1963 1963  
1964 -----
1965 -
1966 1966  ## **Summary of Research Study**
1967 -This study examines how **people without migration background experience demographic change in majority-minority cities**. Using data from the **BaM project**, it challenges traditional **one-way integration models**, showing that **non-migrants also adapt to diverse environments**. The findings highlight **the complexities of social cohesion, identity, and power in rapidly changing urban landscapes**.##
1110 +This study presents a **comprehensive meta-analysis of human trait heritability**, covering **over 50 years of twin research**. The findings confirm **genes play a predominant role in shaping human traits**, with an **average heritability of 49%** across all measured characteristics. The research offers **valuable insights into genetic and environmental influences**, guiding future gene-mapping efforts and behavioral genetics studies.
1968 1968  
1969 1969  This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
1970 1970  
1971 -----
1114 +---
1972 1972  
1973 1973  ## **📄 Download Full Study**
1974 -[[Download Full Study>>attach:10.1080_1369183X.2023.2182548.pdf]]##
1975 -{{/expandable}}
1117 +[[Download Full Study>>attach:10.1038_ng.328.pdf]]
1976 1976  
1119 +{{/expand}}
1977 1977  
1978 -= Media =
1121 +{{html}}<hr style="border: 3px solid red;">{{/html}}
1979 1979  
1123 +{{expand title="Study: Genetic Analysis of African Populations: Human Evolution and Complex Disease" expanded="false"}}
1124 +**Source:** *Nature Reviews Genetics*
1125 +**Date of Publication:** *2002*
1126 +**Author(s):** *Sarah A. Tishkoff, Scott M. Williams*
1127 +**Title:** *"Genetic Analysis of African Populations: Human Evolution and Complex Disease"*
1128 +**DOI:** [10.1038/nrg865](https://doi.org/10.1038/nrg865)
1129 +**Subject Matter:** *Population Genetics, Human Evolution, Complex Diseases*
1980 1980  
1981 -== Study: The Role of Computer-Mediated Communication in Intergroup Conflic ==
1131 +---
1982 1982  
1983 -{{expandable expandByDefault="false" summary="Study: The Role of Computer-Mediated Communication in Intergroup Conflict"}}
1984 -**Source:** *Journal of Computer-Mediated Communication*
1985 -**Date of Publication:** *2021*
1986 -**Author(s):** *Zeynep Tufekci, Jesse Fox, Andrew Chadwick*
1987 -**Title:** *"The Role of Computer-Mediated Communication in Intergroup Conflict"*
1988 -**DOI:** [10.1093/jcmc/zmab003](https://doi.org/10.1093/jcmc/zmab003)
1989 -**Subject Matter:** *Online Communication, Social Media, Conflict Studies* 
1990 -
1991 -----
1992 -
1993 -## **Key Statistics**##
1994 -
1133 +## **Key Statistics**
1995 1995  1. **General Observations:**
1996 - - Analyzed **over 500,000 social media interactions** related to intergroup conflict.
1997 - - Found that **computer-mediated communication (CMC) intensifies polarization**.
1135 + - Africa harbors **the highest genetic diversity** of any region, making it key to understanding human evolution.
1136 + - The study analyzes **genetic variation and linkage disequilibrium (LD) in African populations**.
1998 1998  
1999 1999  2. **Subgroup Analysis:**
2000 - - **Anonymity and reduced social cues** in CMC increased hostility.
2001 - - **Echo chambers formed more frequently in algorithm-driven environments**.
1139 + - African populations exhibit **greater genetic differentiation compared to non-Africans**.
1140 + - **Migration and admixture** have shaped modern African genomes over the past **100,000 years**.
2002 2002  
2003 2003  3. **Other Significant Data Points:**
2004 - - **Misinformation spread 3x faster** in polarized online discussions.
2005 - - Users exposed to **conflicting viewpoints were more likely to engage in retaliatory discourse**.
1143 + - The **effective population size (Ne) of Africans** is higher than that of non-African populations.
1144 + - LD blocks are **shorter in African genomes**, suggesting more historical recombination events.
2006 2006  
2007 -----
1146 +---
2008 2008  
2009 -## **Findings**##
2010 -
1148 +## **Findings**
2011 2011  1. **Primary Observations:**
2012 - - **Online interactions amplify intergroup conflict** due to selective exposure and confirmation bias.
2013 - - **Algorithmic sorting contributes to ideological segmentation**.
1150 + - African populations are the **most genetically diverse**, supporting the *Recent African Origin* hypothesis.
1151 + - Genetic variation in African populations can **help fine-map complex disease genes**.
2014 2014  
2015 2015  2. **Subgroup Trends:**
2016 - - Participants with **strong pre-existing biases became more polarized** after exposure to conflicting views.
2017 - - **Moderate users were more likely to disengage** from conflict-heavy discussions.
1154 + - **West Africans exhibit higher genetic diversity** than East Africans due to differing migration patterns.
1155 + - Populations such as **San hunter-gatherers show deep genetic divergence**.
2018 2018  
2019 2019  3. **Specific Case Analysis:**
2020 - - **CMC increased political tribalism** in digital spaces.
2021 - - **Emotional language spread more widely** than factual content.
1158 + - Admixture in African Americans includes **West African and European genetic contributions**.
1159 + - SNP (single nucleotide polymorphism) diversity in African genomes **exceeds that of non-African groups**.
2022 2022  
2023 -----
1161 +---
2024 2024  
2025 -## **Critique and Observations**##
2026 -
1163 +## **Critique and Observations**
2027 2027  1. **Strengths of the Study:**
2028 - - **Largest dataset** to date analyzing **CMC and intergroup conflict**.
2029 - - Uses **longitudinal data tracking user behavior over time**.
1165 + - Provides **comprehensive genetic analysis** of diverse African populations.
1166 + - Highlights **how genetic diversity impacts health disparities and disease risks**.
2030 2030  
2031 2031  2. **Limitations of the Study:**
2032 - - Lacks **qualitative analysis of user motivations**.
2033 - - Focuses on **Western social media platforms**, missing global perspectives.
1169 + - Many **African populations remain understudied**, limiting full understanding of diversity.
1170 + - Focuses more on genetic variation than on **specific disease mechanisms**.
2034 2034  
2035 2035  3. **Suggestions for Improvement:**
2036 - - Future studies should **analyze private messaging platforms** in conflict dynamics.
2037 - - Investigate **interventions that reduce online polarization**.
1173 + - Expand research into **underrepresented African populations**.
1174 + - Integrate **whole-genome sequencing for a more detailed evolutionary timeline**.
2038 2038  
2039 -----
1176 +---
2040 2040  
2041 2041  ## **Relevance to Subproject**
2042 -- Explores how **digital communication influences social division**.
2043 -- Supports research on **social media regulation and conflict mitigation**.
2044 -- Provides **data on misinformation and online radicalization trends**.##
1179 +- Supports **genetic models of human evolution** and the **out-of-Africa hypothesis**.
1180 +- Reinforces **Africa’s key role in disease gene mapping and precision medicine**.
1181 +- Provides insight into **historical migration patterns and their genetic impact**.
2045 2045  
2046 -----
1183 +---
2047 2047  
2048 -## **Suggestions for Further Exploration**##
1185 +## **Suggestions for Further Exploration**
1186 +1. Investigate **genetic adaptations to local environments within Africa**.
1187 +2. Study **the role of African genetic diversity in disease resistance**.
1188 +3. Expand research on **how ancient migration patterns shaped modern genetic structure**.
2049 2049  
2050 -1. Investigate **how online anonymity affects real-world aggression**.
2051 -2. Study **social media interventions that reduce political polarization**.
2052 -3. Explore **cross-cultural differences in CMC and intergroup hostility**.
1190 +---
2053 2053  
2054 -----
2055 -
2056 2056  ## **Summary of Research Study**
2057 -This study examines **how online communication intensifies intergroup conflict**, using a dataset of **500,000+ social media interactions**. It highlights the role of **algorithmic filtering, anonymity, and selective exposure** in **increasing polarization and misinformation spread**. The findings emphasize the **need for policy interventions to mitigate digital conflict escalation**.##
1193 +This study explores the **genetic diversity of African populations**, analyzing their role in **human evolution and complex disease research**. The findings highlight **Africa’s unique genetic landscape**, confirming it as the most genetically diverse continent. The research provides valuable insights into **how genetic variation influences disease susceptibility, evolution, and population structure**.
2058 2058  
2059 -----
1195 +This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
2060 2060  
1197 +---
1198 +
2061 2061  ## **📄 Download Full Study**
2062 -[[Download Full Study>>attach:10.1093_jcmc_zmab003.pdf]]##
2063 -{{/expandable}}
1200 +[[Download Full Study>>attach:10.1038_nrg865MODERN.pdf]]
2064 2064  
1202 +{{/expand}}
2065 2065  
2066 -== Study: Equality, Morality, and the Impact of Media Framing on Same-Sex Marriage and Civil Unions ==
1204 +{{html}}<hr style="border: 3px solid red;">{{/html}}
2067 2067  
2068 -{{expandable expandByDefault="false" summary="Study: Equality, Morality, and the Impact of Media Framing on Same-Sex Marriage and Civil Unions"}}
2069 -**Source:** *Politics & Policy*
2070 -**Date of Publication:** *2007*
2071 -**Author(s):** *Tyler Johnson*
2072 -**Title:** *"Equality, Morality, and the Impact of Media Framing: Explaining Opposition to Same-Sex Marriage and Civil Unions"*
2073 -**DOI:** [10.1111/j.1747-1346.2007.00092.x](https://doi.org/10.1111/j.1747-1346.2007.00092.x)
2074 -**Subject Matter:** *LGBTQ+ Rights, Public Opinion, Media Influence* 
1206 +{{expand title="Study: Genetic Analysis of African Populations: Human Evolution and Complex Disease" expanded="false"}}
1207 +**Source:** *Nature Reviews Genetics*
1208 +**Date of Publication:** *2002*
1209 +**Author(s):** *Sarah A. Tishkoff, Scott M. Williams*
1210 +**Title:** *"Genetic Analysis of African Populations: Human Evolution and Complex Disease"*
1211 +**DOI:** [10.1038/nrg865](https://doi.org/10.1038/nrg865)
1212 +**Subject Matter:** *Population Genetics, Human Evolution, Complex Diseases*
2075 2075  
2076 -----
1214 +---
2077 2077  
2078 -## **Key Statistics**##
2079 -
1216 +## **Key Statistics**
2080 2080  1. **General Observations:**
2081 - - Examines **media coverage of same-sex marriage and civil unions from 2004 to 2011**.
2082 - - Analyzes how **media framing influences public opinion trends** on LGBTQ+ rights.
1218 + - Africa harbors **the highest genetic diversity** of any region, making it key to understanding human evolution.
1219 + - The study analyzes **genetic variation and linkage disequilibrium (LD) in African populations**.
2083 2083  
2084 2084  2. **Subgroup Analysis:**
2085 - - **Equality-based framing decreases opposition** to same-sex marriage.
2086 - - **Morality-based framing increases opposition** to same-sex marriage.
1222 + - African populations exhibit **greater genetic differentiation compared to non-Africans**.
1223 + - **Migration and admixture** have shaped modern African genomes over the past **100,000 years**.
2087 2087  
2088 2088  3. **Other Significant Data Points:**
2089 - - When **equality framing surpasses morality framing**, public opposition declines.
2090 - - Media framing **directly affects public attitudes** over time, shaping policy debates.
1226 + - The **effective population size (Ne) of Africans** is higher than that of non-African populations.
1227 + - LD blocks are **shorter in African genomes**, suggesting more historical recombination events.
2091 2091  
2092 -----
1229 +---
2093 2093  
2094 -## **Findings**##
2095 -
1231 +## **Findings**
2096 2096  1. **Primary Observations:**
2097 - - **Media framing plays a critical role in shaping attitudes** toward LGBTQ+ rights.
2098 - - **Equality-focused narratives** lead to greater public support for same-sex marriage.
1233 + - African populations are the **most genetically diverse**, supporting the *Recent African Origin* hypothesis.
1234 + - Genetic variation in African populations can **help fine-map complex disease genes**.
2099 2099  
2100 2100  2. **Subgroup Trends:**
2101 - - **Religious and conservative audiences** respond more to morality-based framing.
2102 - - **Younger and progressive audiences** respond more to equality-based framing.
1237 + - **West Africans exhibit higher genetic diversity** than East Africans due to differing migration patterns.
1238 + - Populations such as **San hunter-gatherers show deep genetic divergence**.
2103 2103  
2104 2104  3. **Specific Case Analysis:**
2105 - - **Periods of increased equality framing** saw measurable **declines in opposition to LGBTQ+ rights**.
2106 - - **Major political events (elections, Supreme Court cases) influenced framing trends**.
1241 + - Admixture in African Americans includes **West African and European genetic contributions**.
1242 + - SNP (single nucleotide polymorphism) diversity in African genomes **exceeds that of non-African groups**.
2107 2107  
2108 -----
1244 +---
2109 2109  
2110 -## **Critique and Observations**##
2111 -
1246 +## **Critique and Observations**
2112 2112  1. **Strengths of the Study:**
2113 - - **Longitudinal dataset spanning multiple election cycles**.
2114 - - Provides **quantitative analysis of how media framing shifts public opinion**.
1248 + - Provides **comprehensive genetic analysis** of diverse African populations.
1249 + - Highlights **how genetic diversity impacts health disparities and disease risks**.
2115 2115  
2116 2116  2. **Limitations of the Study:**
2117 - - Focuses **only on U.S. media coverage**, limiting global applicability.
2118 - - Does not account for **social media's growing influence** on public opinion.
1252 + - Many **African populations remain understudied**, limiting full understanding of diversity.
1253 + - Focuses more on genetic variation than on **specific disease mechanisms**.
2119 2119  
2120 2120  3. **Suggestions for Improvement:**
2121 - - Expand the study to **global perspectives on LGBTQ+ rights and media influence**.
2122 - - Investigate how **different media platforms (TV vs. digital media) impact opinion shifts**.
1256 + - Expand research into **underrepresented African populations**.
1257 + - Integrate **whole-genome sequencing for a more detailed evolutionary timeline**.
2123 2123  
2124 -----
1259 +---
2125 2125  
2126 2126  ## **Relevance to Subproject**
2127 -- Explores **how media narratives shape policy support and public sentiment**.
2128 -- Highlights **the strategic importance of framing in LGBTQ+ advocacy**.
2129 -- Reinforces the need for **media literacy in understanding policy debates**.##
1262 +- Supports **genetic models of human evolution** and the **out-of-Africa hypothesis**.
1263 +- Reinforces **Africa’s key role in disease gene mapping and precision medicine**.
1264 +- Provides insight into **historical migration patterns and their genetic impact**.
2130 2130  
2131 -----
1266 +---
2132 2132  
2133 -## **Suggestions for Further Exploration**##
1268 +## **Suggestions for Further Exploration**
1269 +1. Investigate **genetic adaptations to local environments within Africa**.
1270 +2. Study **the role of African genetic diversity in disease resistance**.
1271 +3. Expand research on **how ancient migration patterns shaped modern genetic structure**.
2134 2134  
2135 -1. Examine how **social media affects framing of LGBTQ+ issues**.
2136 -2. Study **differences in framing across political media outlets**.
2137 -3. Investigate **public opinion shifts in states that legalized same-sex marriage earlier**.
1273 +---
2138 2138  
2139 -----
2140 -
2141 2141  ## **Summary of Research Study**
2142 -This study examines **how media framing influences public attitudes on same-sex marriage and civil unions**, analyzing **news coverage from 2004 to 2011**. It finds that **equality-based narratives reduce opposition, while morality-based narratives increase it**. The research highlights **how media coverage plays a crucial role in shaping policy debates and public sentiment**.##
1276 +This study explores the **genetic diversity of African populations**, analyzing their role in **human evolution and complex disease research**. The findings highlight **Africas unique genetic landscape**, confirming it as the most genetically diverse continent. The research provides valuable insights into **how genetic variation influences disease susceptibility, evolution, and population structure**.
2143 2143  
2144 -----
1278 +This summary provides an accessible, at-a-glance overview of the study’s contributions. Please refer to the full paper for in-depth analysis.
2145 2145  
1280 +---
1281 +
2146 2146  ## **📄 Download Full Study**
2147 -[[Download Full Study>>attach:10.1111_j.1747-1346.2007.00092.x_abstract.pdf]]##
2148 -{{/expandable}}
1283 +[[Download Full Study>>attach:10.1038_nrg865MODERN.pdf]]
2149 2149  
1285 +{{/expand}}
2150 2150  
2151 -== Study: The Effects of Digital Media on Political Persuasion ==
1287 +{{html}}<hr style="border: 3px solid red;">{{/html}}
2152 2152  
2153 -{{expandable expandByDefault="false" summary="Study: The Effects of Digital Media on Political Persuasion"}}
2154 -**Source:** *Journal of Communication*
2155 -**Date of Publication:** *2019*
2156 -**Author(s):** *Natalie Stroud, Matthew Barnidge, Shannon McGregor*
2157 -**Title:** *"The Effects of Digital Media on Political Persuasion: Evidence from Experimental Studies"*
2158 -**DOI:** [10.1093/joc/jqx021](https://doi.org/10.1093/joc/jqx021)
2159 -**Subject Matter:** *Media Influence, Political Communication, Persuasion* 
2160 2160  
2161 -----
2162 2162  
2163 -## **Key Statistics**##
2164 -
2165 -1. **General Observations:**
2166 - - Conducted **12 experimental studies** on **digital media's impact on political beliefs**.
2167 - - **58% of participants** showed shifts in political opinion based on online content.
2168 -
2169 -2. **Subgroup Analysis:**
2170 - - **Video-based content was 2x more persuasive** than text-based content.
2171 - - Participants **under age 35 were more susceptible to political messaging shifts**.
2172 -
2173 -3. **Other Significant Data Points:**
2174 - - **Interactive media (comment sections, polls) increased political engagement**.
2175 - - **Exposure to counterarguments reduced partisan bias** by **14% on average**.
2176 -
2177 -----
2178 -
2179 -## **Findings**##
2180 -
2181 -1. **Primary Observations:**
2182 - - **Digital media significantly influences political opinions**, with younger audiences being the most impacted.
2183 - - **Multimedia content is more persuasive** than traditional text-based arguments.
2184 -
2185 -2. **Subgroup Trends:**
2186 - - **Social media platforms had stronger persuasive effects** than news websites.
2187 - - Participants who engaged in **online discussions retained more political knowledge**.
2188 -
2189 -3. **Specific Case Analysis:**
2190 - - **Highly partisan users became more entrenched in their views**, even when exposed to opposing content.
2191 - - **Neutral or apolitical users were more likely to shift opinions**.
2192 -
2193 -----
2194 -
2195 -## **Critique and Observations**##
2196 -
2197 -1. **Strengths of the Study:**
2198 - - **Large-scale experimental design** allows for controlled comparisons.
2199 - - Covers **multiple digital platforms**, ensuring robust findings.
2200 -
2201 -2. **Limitations of the Study:**
2202 - - Limited to **short-term persuasion effects**, without long-term follow-up.
2203 - - Does not explore **the role of misinformation in political persuasion**.
2204 -
2205 -3. **Suggestions for Improvement:**
2206 - - Future studies should track **long-term opinion changes** beyond immediate reactions.
2207 - - Investigate **the role of digital media literacy in resisting persuasion**.
2208 -
2209 -----
2210 -
2211 -## **Relevance to Subproject**
2212 -- Provides insights into **how digital media shapes political discourse**.
2213 -- Highlights **which platforms and content types are most influential**.
2214 -- Supports **research on misinformation and online political engagement**.##
2215 -
2216 -----
2217 -
2218 -## **Suggestions for Further Exploration**##
2219 -
2220 -1. Study how **fact-checking influences digital persuasion effects**.
2221 -2. Investigate the **role of political influencers in shaping opinions**.
2222 -3. Explore **long-term effects of social media exposure on political beliefs**.
2223 -
2224 -----
2225 -
2226 -## **Summary of Research Study**
2227 -This study analyzes **how digital media influences political persuasion**, using **12 experimental studies**. The findings show that **video and interactive content are the most persuasive**, while **younger users are more susceptible to political messaging shifts**. The research emphasizes the **power of digital platforms in shaping public opinion and engagement**.##
2228 -
2229 -----
2230 -
2231 -## **📄 Download Full Study**
2232 -[[Download Full Study>>attach:10.1093_joc_jqx021.pdf]]##
2233 -{{/expand}}
Cultural Voyeurism A New Framework for Understanding Race, Ethnicity, and Mediated Intergroup Intera.pdf
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