Research studies on the heritability of intelligence

Question

Quizplus · Accepted Answer

Research studies have consistently shown that within-group variation explains the majority of differences in intelligence, rather than differences between different racial or ethnic groups. This suggests that individual differences in intelligence are primarily due to genetic variations that occur within groups, rather than variations between groups.

Answer: D (with a caveat)
 Some studies have found a correlation between higher intelligence and higher percentages of European ancestry in mixed-race individuals, but this does not mean that all individuals with European ancestry are inherently smarter than those with African ancestry. Intelligence is a complex trait that is influenced by multiple genetic and environmental factors, and racial categories are socially constructed rather than grounded in biology. Therefore, it is important to interpret these findings with caution and in the context of other research on the heritability of intelligence.

Research Studies on the Heritability of Intelligence