If the differences in IQ scores among people were entirely a result of genetic factors, you would expect to find that the correlation in IQ scores would be
A)higher for fraternal twins reared together than for identical twins reared apart.
B)higher for identical twins reared together than for identical twins reared apart.
C)the same for identical twins reared together and for identical twins reared apart.
D)lower for identical twins reared together than for identical twins reared apart.

Question

If the differences in IQ scores among people were entirely a result of genetic factors, you would expect to find that the correlation in IQ scores would be ​
A)higher for fraternal twins reared together than for identical twins reared apart.
B)higher for identical twins reared together than for identical twins reared apart.
C)the same for identical twins reared together and for identical twins reared apart.
D)lower for identical twins reared together than for identical twins reared apart.

Quizplus · Accepted Answer

If the differences in IQ scores were entirely due to genetic factors, the environment would have no effect on these scores. Therefore, identical twins (who share 100% of their genes) would have the same correlation in IQ scores regardless of whether they were reared together or apart, as their IQs would be influenced solely by their genetics.

If the Differences in IQ Scores Among People Were Entirely