An exploratory study of incentive motivation in the retardate.
D000293:Adolescent; D000328:Adult; D002648:Child; D004193:Discrimination Learning; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D008875:Middle Aged; D009042:Motivation; D012201:Reward