title: Measure of activity level in mentally retarded children and adolescents.
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000628:therapy; D008607:Intellectual Disability; D007360:Intelligence; D007804:Language Development; D008297:Male; D009038:Motion; D009043:Motor Activity; D011584:Psychology / Q000295:instrumentation