The Intelligence Quotient is defined as
A) MA/CA x 100.
B) CA/MA x 100.
C) Verbal score plus performance score.
D) Mental age/years of school.

Question

Quizplus · Accepted Answer

The correct formula for calculating Intelligence Quotient (IQ) is MA/CA x 100, where MA stands for mental age and CA stands for chronological age. This formula was developed by psychologist William Stern and is still used today in IQ testing. Therefore, option A is the correct choice. B is incorrect because it reverses the order of the formula, resulting in a different value. C is incorrect because it only applies to specific types of IQ tests, and not all IQ tests have separate verbal and performance scores. D is incorrect because it does not account for the variations in mental age among individuals of the same chronological age.

The Intelligence Quotient Is Defined as