Gary has a mental age of ten and a chronological age of ten.Gary's IQ is 100.

Question

Quizplus · Accepted Answer

According to the original definition of IQ, an individual's IQ score would be equal to their mental age divided by their chronological age and multiplied by 100 (often expressed as IQ = MA/CA x 100). In the case of Gary, his mental age is equal to his chronological age, so his IQ score would be 100 (MA/CA = 10/10 = 1, IQ = 1 x 100 = 100). Therefore, option A is correct.

Gary Has a Mental Age of Ten and a Chronological