Jacques is five years old. On the Stanford-Binet Intelligence Scale, he demonstrates the intellectual functioning of an average six year old. We can say that he has
A)a mental age of 5/6.
B)a mental age of 6.
C)a mental age of 5.
D)an IQ of 60.

Question

Quizplus · Accepted Answer

Mental age is a concept developed by Alfred Binet and refers to the age level at which an individual functions intellectually. Since Jacques is five years old but performs as well as the average six-year-old on the Stanford-Binet Intelligence Scale, his mental age is six. Therefore, the correct answer is B, mental age of six. The other options are incorrect because they do not accurately reflect Jacques' intellectual abilities as indicated by the test.

Jacques Is Five Years Old