title: Non differential reinforcements and discrimination learning by retardates.
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention; D002648:Child; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008297:Male; D008960:Models, Psychological; D012054:Reinforcement, Psychology