Iwata, B A Reward versus cost token systems: an analysis of the effects on students and teacher. [electronic resource] - Journal of applied behavior analysis 1974 - 567-76 p. digital Publication Type: Journal Article ISSN: 0021-8855 Standard No.: 10.1901/jaba.1974.7-567 doi Subjects--Topical Terms: AchievementAdultBehavior TherapyChildChild Behavior Disorders--therapyChoice BehaviorEducation, SpecialHumansMathematicsPunishmentReinforcement, VerbalRewardTeaching