Studies of heritability and SES variations in IQ show that
A) factors associated with low income and poverty prevent children from attaining their genetic potential.
B) heritability estimates provide strong evidence that ethnic differences in IQ have a genetic basis.
C) the heritability of IQ is higher under low-SES than high-SES rearing conditions.
D) heritability estimates can be used to account for between-group differences.

Question

Quizplus · Accepted Answer

Studies have consistently shown that factors associated with low income and poverty, such as poor nutrition, inadequate healthcare, and stressful living conditions, can prevent children from reaching their genetic potential for intelligence.

Answer: B is incorrect because heritability estimates do not provide strong evidence for genetic differences between ethnic groups in IQ.

Answer: C is also incorrect as studies have found that the heritability of IQ is actually higher under high-SES rather than low-SES rearing conditions.

Answer: D is misleading because heritability estimates cannot be used to account for between-group differences since they only account for the proportion of IQ variance within a specific population, not between different populations.

Studies of Heritability and SES Variations in IQ Show That