According to Terman's concept of intelligence quotient (IQ),a ten-year-old child with an IQ of 50 has ____.
A) the chronological age of a five-year-old
B) the mental age of the average ten-year-old
C) one-half of the intelligence of the average ten-year-old
D) a mental age that is lower than her or his chronological age

Question

Quizplus · Accepted Answer

Terman's concept of IQ is based on a comparison of mental age and chronological age. An IQ of 50 means that the child's mental age is half of their chronological age, indicating a lower level of intellectual functioning than average for their age group. Therefore, the correct answer is D, a mental age that is lower than their chronological age.

According to Terman's Concept of Intelligence Quotient (IQ),a Ten-Year-Old Child