This study examined how the amount of effort required to produce a reinforcer influenced subsequent preference for, and strength of, that reinforcer in 7 individuals with intellectual disabilities. Preference assessments identified four moderately preferred stimuli for each participant, and progressive-ratio (PR) analyses indexed reinforcer…

The value of a reinforcer may change based on antecedent events, specifically the behavior of others (Bruzek & Thompson, 2007). In the current study, we examined the effects of manipulating the behavior of the therapist on problem behavior while all dimensions of reinforcement were held constant. Both participants' levels of problem behaviors…

Results of a study comparing the outcome of a reinforcement (do only) procedure with correspondence (say/do) training indicated no apparent differences in generalization between two groups of mentally retarded adults (N=12). Rule-governed behavior, rather than verbal regulation of behavior, may best account for behavior changes seen in…

The study evaluated a commonly used component of brief time-out, in which release from time-out is delayed contingent on the occurrence of the disruption. Data were collected for one normal and two mentally retarded children on time-out producing behaviors and delay-producing behaviors during time-out. (Author/CL)

Two functional communication training (FCT) conditions were compared to treat behavior problems of a child with mental retardation. The child was taught to emit a single FCT response to obtain one of six items or multiple FCT responses that specified the exact item. Only the FCT-multiple conditions reduced problem behavior. (Contains four…

Two families were studied that had children placed in foster care due to abuse and neglect by parents with mental retardation. One mother easily learned necessary parenting skills. In the second case, incremental resumption of custody was made contingent on completion of relevant parenting tasks; when progress in task completion ceased, parental…