If the heritability of intelligence within both group A and group B is 100 percent,differences in average intelligence between these groups might result from
A) environmental differences if the two groups are genetically similar.
B) genetic differences if the two groups have similar environments.
C) both genetic and environmental differences between the two groups.
D) any of these situations.

Question

Quizplus · Accepted Answer

Heritability of 100 percent means that all variations in intelligence within each group are due to genetic differences. However, differences in average intelligence between the groups could stem from environmental differences if the groups are genetically similar, genetic differences if their environments are similar, or a combination of both genetic and environmental differences. Thus, any of these situations could account for the observed differences between the groups.

If the Heritability of Intelligence Within Both Group a and Group