Of the following, the greatest correlation in IQ scores can be observed between
A)identical twins reared apart.
B)fraternal twins reared together.
C)siblings reared together.
D)parents and their children.

Question

Quizplus · Accepted Answer

Identical twins share 100% of their genes and any difference in their IQ scores can be attributed to environmental factors. When reared apart, their shared environment is minimized and any similarity in their IQ scores can be attributed to genetics. Studies have shown that the correlation in IQ scores between identical twins reared apart is higher than any other combination, including fraternal twins reared together, siblings reared together, and parents and their children.

Of the Following, the Greatest Correlation in IQ Scores Can