What percentage of the American population would qualify as mentally retarded on the basis of IQ?
A) 10
B) 8
C) 6
D) 2

Question

Quizplus · Accepted Answer

According to the DSM-5, an IQ score of 70 or below is one of the criteria for a diagnosis of intellectual disability (formerly known as mental retardation). Only approximately 2% of the American population has an IQ score of 70 or below, making choice D the correct answer.

What Percentage of the American Population Would Qualify as Mentally