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This article describes the quota system as a treatment for the helplessness behaviors and depressive symptoms that develop in some patients with burn injuries. With an A-B single-case design, the quota system was implemented for a patient who had sustained a particularly severe burn injury. A series of baseline behaviors were measured for 3 days, and then 80% of the patient's average performance on each of the targeted behaviors was computed and used as the initial quota value. The behavioral quotas were increased systematically and gradually by approximately 5% to 10% every day. The results suggest that the quota system may have been effective in decreasing an overall trend toward passivity, in increasing 3 of 4 targeted rehabilitation behaviors, and in reducing depressive symptoms in a patient with a particularly devastating injury.
Ehde et al. (Tue,) studied this question.