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

Multiple Choice

When tested on the Binet-Simon scale, Ada is found to have a mental age of eight. This means

A) that she is intellectually impaired.
B) that her performance was as good as that of an average eight-year-old child.
C) that her score is eight standard deviation units above the average score.
D) that her IQ is 80.