Researchers who have examined the IQ scores of adopted children have found
A) a high correlation between the children's scores and the scores of their adoptive parents.
B) a high correlation between the children's scores and the scores of their birth parents.
C) both modest correlations between the children's scores and the scores of adoptive parents, and modest correlations between the children's scores and the scores of birth parents.
D) almost no correlation between the children's scores and the scores of their adoptive parents.

Question

Quizplus · Accepted Answer

Research on adopted children's IQ scores has found modest correlations between the children's scores and both their adoptive parents and birth parents. This suggests that both genetic and environmental factors play a role in determining IQ scores. However, it should be noted that correlation does not necessarily imply causation, and other factors could also be at play.

Researchers Who Have Examined the IQ Scores of Adopted Children