With age, the IQ scores of adopted children and their biological parents become _____ correlated, and the IQ scores of adopted children and their adoptive parents become _____ correlated.

Question

Quizplus · Accepted Answer

With age, the IQ scores of adopted children tend to become more correlated with their biological parents, reflecting the genetic contribution to intelligence. Conversely, the correlation with their adoptive parents, who contribute to the child's environment rather than their genetics, tends to decrease.

With Age, the IQ Scores of Adopted Children and Their