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* Expert surveys show that intelligence researchers attribute the Black-White IQ difference to a mix of genetic and environmental factors. |
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* Brain size correlates with IQ, with MRI studies showing a correlation above 0.40. |
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-[[image:20241030_160845 [image_ images].jpg||data-xwiki-image-style="thumbnail-clickable" width="200"]] |
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+[[image:20241030_160845.jpg||alt="Brain Genetics" style="float:right; margin-left:10px; width:300px"]] |
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== Key Points of the Mainstream View == |
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1. **IQ Tests Measure Cognitive Ability, Not Innate Intelligence** |
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+ * IQ tests measure problem-solving skills and cognitive abilities shaped by environmental factors rather than fixed, innate intelligence. |
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-* IQ tests measure problem-solving skills and cognitive abilities shaped by environmental factors rather than fixed, innate intelligence. |
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2. **Environmental Factors Are the Primary Cause of IQ Differences** |
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+ * Differences in IQ scores are largely explained by disparities in education, income, healthcare, and exposure to enriching experiences. |
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-* Differences in IQ scores are largely explained by disparities in education, income, healthcare, and exposure to enriching experiences. |
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3. **Race Is a Social Construct** |
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+ * Many scholars argue that race is a social construct with limited biological basis, complicating attempts to correlate intelligence with race. |
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-* Many scholars argue that race is a social construct with limited biological basis, complicating attempts to correlate intelligence with race. |
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4. **The Flynn Effect** |
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+ * Rising IQ scores across populations over time suggest that intelligence is highly malleable and influenced by societal improvements. |
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-* Rising IQ scores across populations over time suggest that intelligence is highly malleable and influenced by societal improvements. |
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== Mainstream Supporting Evidence == |
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|=Study/Source |= Findings |= Key Takeaway |
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| Flynn, J. (1987) | IQ scores have risen across populations | Supports environmental improvements |
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| APA Report (1995) | Intelligence disparities are largely environmental | Genetics play a minimal role in explaining differences |
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== Evidence Supporting the Genetic Hypothesis == |
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|=Study/Source |= Findings |= Key Takeaway |
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| Rushton (2003) | Brain size correlates with IQ, varies by race | Suggests a biological component to intelligence |
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| Herrnstein & Murray (1994) | "The Bell Curve" discusses race and intelligence | Suggests a mix of genetic and environmental factors |
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+[[image:20240501_151840.jpg||alt="Genetic Research" style="float:right; margin-left:10px; width:300px"]] |
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= Challenges to the Mainstream View = |
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|= Claim |= Counterpoint |
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| "Race is a social construct" | Genetic studies show population differences in traits |
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| "Environmental factors explain all differences" | Some IQ gaps persist even in similar environments |
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* APA Report (1995) on Intelligence Disparities |
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* Flynn, J. (1987). The Flynn Effect |
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* Expert Survey on Intelligence (2019) |
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