Of the following, the one that would constitute the strongest evidence for environmental influence in intelligence would be similarity in IQ between
A) parents and their biological children.
B) identical twins reared together.
C) adopted children and their foster parents.
D) adopted children and their biological parents.

Question

Quizplus · Accepted Answer

Similarity in IQ between adopted children and their foster parents would suggest environmental influence, as they share no genetic link.

Of the Following, the One That Would Constitute the Strongest