John is taking an intelligence test.His performance on this set of age-graded test items would be used to estimate his __________ age.
A)chronological
B)performance deviation
C)mental
D)verbal deviation

Question

Quizplus · Accepted Answer

Intelligence tests are designed to measure a person's cognitive abilities, and they typically use age-graded items to compare an individual's performance to the average performance of people of the same age. Mental age is a measure of a person's intellectual development that corresponds to the age at which most individuals in a given age group demonstrate similar abilities on the test. By estimating John's mental age based on his performance on the test, we can compare his cognitive abilities to those of other people in his age group.

John Is Taking an Intelligence Test