Children who are adopted shortly after birth have IQ scores that are ________
A) equally similar to the IQ scores of their adoptive mothers and their biological mothers
B) not similar to the IQ scores of either their adoptive mothers or their biological mothers
C) more similar to the IQ scores of their adoptive mothers than to the IQ scores of their biological mothers
D) more similar to the IQ scores of their biological mothers than to the IQ scores of their adoptive mothers

Question

Quizplus · Accepted Answer

Research indicates that genetics play a significant role in determining IQ, so adopted children's IQ scores tend to be more similar to their biological mothers.

Children Who Are Adopted Shortly After Birth Have IQ Scores