Studies of impoverished families find less evidence for genetic influences on intelligence than do studies of middle-class families.

Question

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Studies have found that genetic influences on intelligence are less prominent among impoverished families. This may be due to the impact of environmental factors such as nutrition, education, and access to resources that have a greater impact on cognitive development in low-income households. In contrast, middle-class families tend to have more consistent access to these resources, allowing genetic factors to play a greater role in determining intelligence.

Studies of Impoverished Families Find Less Evidence for Genetic Influences