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) 8; 80
B) 8; 125
C) 10; 100
D) 10; 125
E) 18; 180

Question

Quizplus · Accepted Answer

The mental age of the child is 10 because they scored like an average 10-year-old. To calculate IQ: (Mental Age / Chronological Age) * 100 = (10 / 8) * 100 = 125.

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