Conservation of weight with the mentally retarded.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002657:Child Development; D002674:Child, Institutionalized; D003071:Cognition; D002658:Developmental Disabilities; D004192:Discrimination, Psychological; D004519:Education, Special; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis; D008297:Male; D013195:Stanford-Binet Test; D014888:Wechsler Scales; D014892:Weight Perception