In science in general and in the context of single-case experimental designs, replication of the effects of the intervention within and/or across participants or experiments is crucial for establishing causality and for assessing the generality of the intervention effect. Specific developments and proposals for assessing whether an effect has been…

The assessment of generalization has become a priority of applied behavior analysis. The study provided a thorough assessement of the generality of a comprehensive self-control intervention designed to increase the math performance of an underachieving student in a regular elementary school classroom. (Author/DB)

Using an ABAB design, two procedures for requesting a change of activity were compared for their effect on the stereotypic behavior of a man with autism. One procedure requested immediate change of activities, whereas the second procedure gave advance notice of a change. Less stereotypy occurred when advance notice of change was given. (Author/DB)

This case study presents a 9-year-old boy who exhibited severe stereotypic self-injurious behavior. An escalating differential-reinforcement-of-other-behavior schedule, mediated through token reinforcement, eliminated self-injurious behavior quickly for up to 30-minute periods, and was more effective than social reinforcement. Crying behavior…

In this study of a 12-year-old boy with autism, mental retardation, and a history of severe gastrointestinal problems, who refused liquids and food, backward chaining was used to shape drinking from a cup and a fading procedure was used to increase the water he was required to drink. (Author/CR)

A 10-year-old autistic child was trained to imitate verbal prompts describing the child's motor responses. When intervention was introduced in the form of a gradual delay in the presentation of the verbal prompts, the child's spontaneous speech on trained items increased. Generalization and maintenance were analyzed. (Author/JDD)

Obscene verbalizations in an individual with traumatic brain injury were treated using stimulus fading as the singular form of intervention. Results of a functional assessment revealed the obscenity was maintained by negative reinforcement. Stimulus fading (the gradual reintroduction of instructional demands) produced immediate and substantial…

The sleep-wake cycles of 4 developmentally delayed individuals (ages 3-19) with severe sleep disturbances were regulated using a faded bedtime procedure with response cost. Following treatment, all four increased their amounts of nighttime sleep; two decreased their excessive daytime sleep; and three decreased their night wakings. (Author/JDD)

This study compared the relative efficacy of providing simultaneous or delayed reinforcement on food acceptance during meals with a seven-year-old boy with pervasive developmental disorder and a history of food selectivity. Although both procedures were effective, the simultaneous reinforcement procedure produced more rapid behavior change and a…

A study of an 11-year-old boy with autism and mild mental retardation found that his escape-maintained destructive behavior was reduced during instructional sequences with differential reinforcement of compliance, escape extinction without physical guidance, and demand fading. The procedure decreased destructive behaviors to near-zero levels and…

A urine alarm, typically used to treat nocturnal enuresis, was effectively used to treat diurnal enuresis in a 15-year-old female with depression, attention deficit hyperactivity disorder, and conduct disorder. The study indicated that the alarm eliminated wetting in both treatment phases and that continence was maintained at three-month and…

A stimulus preference assessment was evaluated with an adult and a child with profound mental retardation and severe self-injurious behavior, in order to better predict both the beneficial and negative side effects of stimuli in differential-reinforcement-of-other-behavior treatments. (DB)

This study analyzed specific stimuli reinforcing destructive behavior in two 11-year-olds males with mental retardation and severe destructive behavior problems maintained by attention. The use of concurrent schedules of reinforcement identified alternatives to the reinforcing verbal reprimands and led to development of effective treatments to…

Functional analysis of destructive behavior of a four-year-old boy with autism and oppositional defiant disorder was able to delineate the specific form of verbal attention that was responsible for behavioral maintenance. Treatment based on the analysis reduced the behavior to near-zero levels. (DB)

This study, with an 11-year-old male with severe mental retardation, investigated the effectiveness of selectively implementing punishment for only the most severe topographies of aggression and property destruction, whereas less extreme behaviors were ignored. Results indicated that severe behaviors were reduced to near-zero levels only when both…