When tested on the Binet-Simon scale,Ada is found to have a mental age of 8.This means
A) that she is intellectually impaired.
B) that her performance was as good as that of an average 8-year-old child.
C) that her score is 8 standard deviation units above the average score.
D) that her IQ is 80.

Question

Quizplus · Accepted Answer

The Binet-Simon scale measures a child's mental age, which is the age at which they perform intellectually. Therefore, Ada's mental age of 8 means she performs intellectually at the level of an 8-year-old child. It does not necessarily mean she is intellectually impaired or that her score is 8 standard deviation units above the average score. The Binet-Simon scale does not directly provide an IQ score. Therefore, the best choice is B, which states that Ada's performance was as good as that of an average 8-year-old child.

When Tested on the Binet-Simon Scale,Ada Is Found to Have