The American Speech-Language-Hearing Association (n.d.) suggests that acquisition and use of augmentative and alternative communication (AAC) is dynamic and that learning multiple modalities may be beneficial particularly for those individuals with severe disabilities. Evaluation of response variability after training multiple modalities has yet…

Functional analyses (FA) have proven useful for identifying contingencies that influence problem behavior. Research has shown that some problem behavior may only occur in specific contexts or be influenced by multiple or idiosyncratic variables. When these contexts or sources of influence are not assessed in an FA, further assessment may be…

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…

This article reviews evidence from basic and translational research with pigeons and humans suggesting that the persistence of operant behavior depends on the contingency between stimuli and reinforcers, and considers some implications for clinical interventions. (Contains 4 figures.)

Recent mandates related to the implementation of evidence-based practices for individuals with autism spectrum disorder (ASD) require that autism professionals both understand and are able to implement practices based on the science of applied behavior analysis (ABA). The use of the term "applied behavior analysis" and its related concepts…

An observing procedure was used to investigate the effects of alterations in response-conditioned-reinforcer relations on observing. Pigeons responded to produce schedule-correlated stimuli paired with the availability of food or extinction. The contingency between observing responses and conditioned reinforcement was altered in three experiments.…

This study evaluated use of the interpolation of reinforcement effect, which combines intermittent (INT) and continuous reinforcement (CRF) schedules, with four young children with autism using a free-operant preparation. Results suggest that responding may be less resistant to extinction following interpolated CRF reinforcement than following INT…

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…

Time-out is an effective child deceleration technique. The Time-Out Grid is a simple heuristic tool illustrating the fundamental feature of an effective time-out intervention and subsequently guides those involved in the problem analysis and program evaluation phases of consultation. Provides specific procedural recommendations for classroom…

Reviews studies involving noncontingent reinforcement (NCR) for the treatment of challenging behavior such as aggression, self-injury, and extreme tantrums in persons with developmental disabilities. A clinical guide for implementation is delineated. Among the advantages of NCR is ease of implementation. NCR appears particularly relevant for…

This training manual is designed to prepare behavior assistants to teach parents and other family members how to use operant conditioning techniques to solve family problems with children. Readers are warned not to attempt to put the recommended procedures to actual use until the text is fully comprehended. Chapter I gives arguments to justify the…

A survey of 55 Louisiana members of the American Association on Mental Retardation (AAMR) indicated disagreement with an AAMR position statement condemning inhumane forms of aversive therapy. AAMR is urged to reconsider its position concerning the scope of aversive therapy, need for further research, and use of aversive therapy with some…

We recently reported that fear extinction, a form of inhibitory learning, is selectively blocked by systemic administration of L-type voltage-gated calcium channel (LVGCC) antagonists, including nifedipine, in mice. We here replicate this finding and examine three reduced contingency effects after vehicle or nifedipine (40 mg/kg) administration.…

The effectiveness of four operant procedures (differential reinforcement of incompatible behavior, omission training, overcorrection, and reinforcement withdrawal) in changing self injurious behavior (SIB) of 16 severely handicapped students was examined. Analysis of correlations between reduction in SIB and subject characteristics, adaptive…

Five experiments were conducted to determine whether properties inherent in some training procedures may subtly influence the adaptability of skilled performance of complex tasks. The first two experiments assessed the insensitivity of low-rate performances. Examined in the third experiment was the issue of whether instructions that focus…