What evidence has indicated the importance of environmental factors in intelligence?
A)Identical twins reared together have slightly higher correlations of IQ scores, compared to identical twins reared apart.
B)Fraternal twins reared together have lower correlations of IQ scores, compared to fraternal twins reared apart.
C)Adopted children do not have correlations with other family members.
D)No evidence exists indicating the importance of environmental factors in intelligence.

Question

Quizplus · Accepted Answer

Identical twins reared together showing slightly higher correlations of IQ scores compared to those reared apart suggests that the environment plays a role in shaping intelligence, as the only difference between these sets of twins is their environment.

What Evidence Has Indicated the Importance of Environmental Factors in Intelligence