If all of the children born this year could be raised in absolutely identical environments, the variability in their intelligence scores in 10 years' time would probably __________.
A) equal 0
B) be considerably reduced
C) be considerably increased
D) not be affected

Question

Quizplus · Accepted Answer

Even if children are raised in identical environments, they would still have different genetic makeups, which can influence their intelligence. However, environmental factors can also impact intelligence. By providing identical environments, the variability due to environmental factors would be reduced, but the variability due to genetics would remain. Therefore, the variability in intelligence scores would be considerably reduced, but not eliminated entirely.

If All of the Children Born This Year Could Be