According to Terman's original computation of intelligence quotient, if Ralph's computed IQ score is 75, then he
A) might be a 12-year-old who is as smart as the average 9-year-old.
B) correctly answered three-fourths of the questions on the intelligence test.
C) is 75 years old.
D) might be a 6-year-old who is as intelligent as most 8-year-olds.
E) is as smart as the average 75-year-old.

Question

Quizplus · Accepted Answer

Terman's original computation of IQ is based on the ratio of mental age to chronological age multiplied by 100. Therefore, if Ralph's computed IQ is 75, it means his mental age is equivalent to that of a 9-year-old (since 9/12=0.75) and he might be a 12-year-old who is as smart as the average 9-year-old.

According to Terman's Original Computation of Intelligence Quotient, If Ralph's