Which of these pairs of twins would have the highest correlation on test scores measuring intelligence?
A)Identical twins reared together
B)Identical twins reared apart
C)Fraternal twins reared together
D)Fraternal twins reared apart

Question

Quizplus · Accepted Answer

Identical twins reared together would have the highest correlation on test scores measuring intelligence because they share both their genetic makeup and their environment. Identical twins have nearly identical genes, and being reared together means they share similar environmental influences, which both contribute significantly to intelligence.

Which of These Pairs of Twins Would Have the Highest