An 8-year-old child who scored like an average 10-year-old on an intelligence test would have a mental age of ________ and an IQ of ________.
A) 10; 100
B) 8; 125
C) 8; 100
D) 10; 125

Question

Quizplus · Accepted Answer

The mental age is 10 because the child scored like an average 10-year-old. IQ is calculated as (Mental Age/Chronological Age) x 100, so (10/8) x 100 = 125.

An 8-Year-Old Child Who Scored Like an Average 10-Year-Old on an Intelligence