title: Effects of differential reinforcement procedures on discrimination learning by institutionalized mentally retarded children.
mesh_terms: D002648:Child; D002674:Child, Institutionalized; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D012056:Reinforcement, Social