Application of operant procedures in a group of institutionalized aggressive geriatric patients.

This study used positive reinforcement schedules versus no reinforcement on a group of 6 highly aggressive, institutionalized elderly patients. Dependent measures included confirmed incidents of physical and verbal aggressive behavior monitored across an ABAB design with a 4-month phase-out period. Results indicated that aggressive behavior can be significantly decreased in a group setting and subsequently generalized to ward behavior. Ancillary aspects of the study included the role of tangible and back-up reinforcers and staff attitude and behavior. Implications for future research are discussed.