title: Self versus teacher selected reinforcers in a token economy.
mesh_terms: D000124:Achievement; D002648:Child; D002755:Choice Behavior; D003657:Decision Making; D004519:Education, Special; D005069:Evaluation Studies as Topic; D006801:Humans; D012054:Reinforcement, Psychology; D012073:Remedial Teaching; D012201:Reward; D014040:Token Economy