If intelligence has a heritability of .5 to .7,it means that:
A) 50-70% of a person's IQ score is explained by genetic factors
B) 50-70% of IQ scores are explained by genetic factors
C) 5-7% of a person's IQ score is explained by genetic factors
D) 25-49% of a person's IQ score is explained by genetic factors

Question

Quizplus · Accepted Answer

Heritability refers to the proportion of differences in a trait (in this case, IQ) that can be attributed to genetic differences among individuals in a population. A heritability estimate of .5 to .7 indicates that genetic factors explain 50-70% of the variations we see in IQ scores across individuals. Option A correctly reflects this interpretation.

If Intelligence Has a Heritability of