Mental Retardation (Idiocy)

Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual is mentally retarded. IQ scores between 70 and 79 are in the borderline mentally retarded range. Scores below 67 are in the retarded range. (Joynt, Clinical Neurology, 1992, Ch55, p28)
Also Known As:
Idiocy; Mental Deficiency; Retardation, Mental; Deficiency, Mental; Disability, Intellectual; Mental Retardation, Psychosocial; Deficiencies, Mental; Disabilities, Intellectual; Intellectual Disabilities; Intellectual Disability; Mental Deficiencies; Mental Retardations, Psychosocial; Psychosocial Mental Retardation; Psychosocial Mental Retardations; Retardation, Psychosocial Mental; Retardations, Psychosocial Mental
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