Reducing stereotyped behaviour: a comparison of two methods of programming differential reinforcement.

Differential Reinforcement of Other behaviours (DRO) has proven to be successful in reducing challenging behaviour, although the need for staff vigilance can limit its applicability in applied settings. The present study compared the effectiveness of whole-interval DRO with momentary DRO, a less intensive schedule. In a multiple-baseline design, two participants who exhibited high-rate stereotyped behaviours were presented with the two schedules. Momentary DRO was more effective than whole-interval DRO in reducing the targeted stereotypies of one participant, and as effective with the second. Momentary DRO was also more effective in reducing a second (non-consequated) stereotyped behaviour.