title: Tangible and social reinforcers for correct responses in assessing severely retarded school-age children.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000523:psychology*; D008297:Male; D011340:Problem Solving; D012056:Reinforcement, Social; D012201:Reward; D013647:Task Performance and Analysis; D013850:Thinking