Relationship between activity level and delay of reinforcement in the retarded.
D001288:Attention; D002648:Child; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D009068:Movement; D012054:Reinforcement, Psychology; D012201:Reward