A longitudinal investigation of the relationship between preinstitutional social deprivation and social motivation in institutionalized retardates.
D002648:Child; D002674:Child, Institutionalized; D003467:Cultural Deprivation; D005190:Family; D006801:Humans; D008607:Intellectual Disability; D007360:Intelligence; D009042:Motivation; D012056:Reinforcement, Social