When Charmaine was ten years old, she completed the original Stanford-Binet Intelligence Scale. She answered all the questions that a typical six-year-old would answer, but none of the questions a typical seven-year-old would answer. What is Charmaine's mental age based on this information?

Question

Quizplus · Accepted Answer

Charmaine's mental age is 6 years because she could only answer questions that a typical six-year-old could answer.

When Charmaine Was Ten Years Old, She Completed the Original