Which of the following groups have the greatest chance of having similar IQ scores: identical twins raised apart or two biologically unrelated individuals raised together?
A) Two biologically unrelated individuals raised together
B) Two identical twins raised apart
C) Both groups will have equal chance to have similar scores
D) Both groups will have zero chance to have similar scores
E) The probability is impossible to predict

Question

Quizplus · Accepted Answer

Identical twins have the highest correlation in IQ scores, even when raised apart, due to their shared genetic makeup. Biologically unrelated individuals may have similar environmental influences, but they do not share the same genetic background.

Which of the Following Groups Have the Greatest Chance of Having