In which sample would you expect the heritability of IQ to be the lowest?
A) low socioeconomic status twins
B) middle socioeconomic status twins
C) high socioeconomic status twins
D) none of the above; the heritability will be the same in all three groups

Question

Quizplus · Accepted Answer

Heritability of IQ tends to be lower in populations under significant environmental stress or variability, such as those in low socioeconomic status. This is because environmental factors have a larger role in influencing IQ, reducing the relative influence of genetics.

In Which Sample Would You Expect the Heritability of IQ