Mental retardation is defined if IQ is below -: (A) 90, (B) 80, (C) 70, (D) 60
Answer is C. Ans. is 'c' i.e., 70 * A child with IQ < 70 is called mentally retarded.* The WHO classification of mental retardation is based on the concept of IQ and includes the following categories:CategoryIQMild50-70Moderate35-49Severe20-34Profound<20* A child with IQ < 70 is called mentally retarded.