Management of multiple aggressive behaviors by differential reinforcement.

The present study examined the use of a DRO procedure (differential reinforcement of other behavior) to manage multiple forms of aggression exhibited by a developmentally handicapped child. The effects of treatment were contrasted to baseline conditions in an ABAB reversal design. Treatment consisted of reinforcing the child with social and consumable rewards for not responding aggressively during timed intervals. Results indicated that DRO was successful in reducing the frequencies of targeted aggressions. The positive effects of intervention were maintained at a 34-week follow-up assessment at which time a substantial increase in the interval for reinforcement had been achieved.