IQ =20-34 -
Ans. is 'a' i.e., Severe MR The Intelligence Quotient (I.Q.) is calculated according to the formula:The WHO classification of mental retardation is based on the concept of IQ and includes the following categories:CategoryIQMild50-70Moderate35-49Severe20-34Profound<20A child with IQ <70 is called mentally retarded.
Severe MR
Profound MR
Moderate MR
Mild MR
Social Science, Mental Health & Genetics