We conducted 2 studies to determine whether dense and thin NCR schedules exert different influences over behavior and whether these influences change as dense schedules are thinned. In Study 1, we observed that thin as well as dense NCR schedules effectively decreased problem behavior exhibited by 3 individuals. In Study 2, we compared the effects…

We evaluated a trial-based approach to conducting functional analyses in classroom settings. Ten students referred for problem behavior were exposed to a series of assessment trials, which were interspersed among classroom activities throughout the day. Results of these trial-based functional analyses were compared to those of more traditional…

Three participants whose problem behavior was maintained by contingent attention were exposed to 45-min presessions in which attention was withheld, provided on a fixed-time (FT) 15-s schedule, or provided on an FT 120-s schedule. Following each presession, participants were then tested in a 15-min session similar to the social attention condition…

The results of a functional analysis of problem behavior and a paired-choice assessment were compared to determine whether the same social reinforcers were identified for problem behavior and an appropriate response (time allocation). The two assessments were conducted in classroom settings with 4 adolescents with mental retardation who engaged in…

This study compared differential reinforcement of other behavior (DRO) and noncontingent reinforcement (NCR) in the reduction of self-injurious behavior in three adult females with severe or profound mental retardation. Both procedures were highly effective in reducing self-injury, with NCR less limited than DRO. (Author/DB)

Method of treatment of self-injurious behaviors for three severely retarded students (ages six-seven) was selected by matching one of three hypotheses (self-stimulation, positive reinforcement, negative reinforcement) to a judgment concerning cause. Results supported the argument that treatment programs should be based on a functional analysis of…