The environmental hypothesis on IQ is supported by data showing that

Question

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The fact that African-American children adopted by middle-class Caucasians show strong gains in IQ supports the environmental hypothesis on IQ, as it suggests that social and environmental factors, rather than genetic factors, contribute to differences in IQ. Option A is incorrect because consistent and stable racial group differences might be due to environmental, genetic, or a combination of both factors. Option B is incorrect because the ability to increase IQ through embryonic stem-cell implants is still under research and not well established. Option C is incorrect because while genetics can influence IQ, it is not the only factor involved.

The Environmental Hypothesis on IQ Is Supported by Data Showing