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

Question

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

Quizplus · Accepted Answer

According to the concept of mental age and IQ, the child has a mental age of 10 because they scored like an average 10-year-old on the intelligence test. To calculate the child's IQ, divide the mental age (10) by the child's chronological age (8) and multiply by 100. So, IQ = (10/8) x 100 = 125. Therefore, the child would have a mental age of 10 and an IQ of 125, which is option D.

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