Derek's intelligence quotient (IQ) of 100
A) expresses the ratio of his chronological age to his mental age.
B) indicates the extent to which his raw score deviates from the typical performance of same-age individuals.
C) represents the number of test items he left unanswered as compared to those items he answered correctly.
D) is based on the average score from the same test taken at three different ages.

Question

Quizplus · Accepted Answer

An IQ score of 100 indicates that Derek's raw score is the same as the typical performance of same-age individuals, meaning he has an average score compared to his peers. IQ is not related to the number of test items answered or unanswered. It is also not based on comparing scores at different ages. The ratio of chronological age to mental age is used to calculate a different type of intelligence score, known as the intelligence quotient ratio (IQ ratio).

Derek's Intelligence Quotient (IQ) of 100