The effect of some incentives on the work performance of psychiatric patients at a rehabilitation workshop.
Five experimental incentive conditions were compared with a control condition in terms of their effect on work performance. Each of the six groups studied had a standard four-week baseline period (Block 1) consisting of an attendance payment, followed by a four-week experimental period (Block 2). Whereas all patients in the Control and Feedback groups produced less during Block 2, only two patients in the remaining four groups failed to improve. An analysis of variance indicated that Social Reinforcement, Piece Rate, Piece Rate plus Social Reinforcement, and Pay Increase plus Social Reinforcement were significantly superior to the Control and Feedback conditions.