In one massive study of 11,000 twin pairs in four countries,the heritability of general intelligence (g)________ between middle childhood and adolescence and it ________ between adolescence and young adulthood.
A) decreased;decreased
B) increased;increased
C) decreased;increased
D) increased;decreased

Question

Quizplus · Accepted Answer

The heritability of general intelligence (g) is found to increase from middle childhood to adolescence and continues to increase from adolescence to young adulthood. This suggests that as individuals age, genetic factors play a more significant role in their intelligence.

In One Massive Study of 11,000 Twin Pairs in Four