title: Observational learning in retarded and normal children as a function of delay between observation and opportunity to perform.
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D001288:Attention; D001521:Behavior Therapy; D002648:Child; D002657:Child Development; D004495:Education of Persons with Intellectual Disabilities; D005403:Fixation, Ocular; D006801:Humans; D007100:Imitative Behavior; D008607:Intellectual Disability; D007360:Intelligence; D008297:Male; D009040:Motion Pictures; D012054:Reinforcement, Psychology; D013647:Task Performance and Analysis; D013663:Teaching; D013690:Television; D013997:Time Factors; D014796:Visual Perception