Dr. Frank Gresham provides his reflections on a long and productive career in providing support to children with significant challenges. Dr. Gresham also provides his thoughts on the future of the field.

In this article, the author discusses the distinction between positive and negative reinforcement and some additional considerations. He states that the concept of negative reinforcement has caused confusion, and he believes that the difficulty stems from conventions of ordinary speech, in which the term "negative" usually denotes the opposite of…

In this article, the author discusses and presents seven possibilities that describe how symmetry principles are reflected in behavior analysis. First, if there are apparently no functional distinctions to be made between positive and negative reinforcement, then reinforcer effectiveness (by various measures) is invariant under a simple inversion…

In a previous issue of "The Behavior Analyst," the authors discussed the ambiguities that surround the distinction between positive and negative reinforcement. Seven distinguished behavior analysts commented on their article. The authors believe that this dialogue represented a constructive step toward clarification of an important concept within…

This paper reviews the functional properties and procedural variations of differential reinforcement for the reduction of behavior disorders in individuals with developmental disabilities. The paper proposes that limited success may be a result of the arbitrary relationship that exists between reinforcers and target behaviors when behavioral…

This paper offers modifications to the position of Horner and others (EC 232 976), including tying the level of approval required for an intervention to the seriousness of the behavior problem. The paper proposes that the debate over the use of "aversives" is finished, and attention should now be turned to how best to use positive…

This review describes four major hypotheses related to aggressive behavior and reviews current means for assessment. Hypotheses suggest that aggressive behavior is the result of a social skills deficit, positive or negative reinforcement, environmental deficits, or deficits in the cognitive processing of social stimuli. Changes in assessment…

A detailed hypothesis of the acquisition and maintenance of self-stimulatory behavior is offered, proposing that such behaviors are operant responses whose reinforcers are automatically produced perceptual consequences. Related concepts are discussed, and support for the hypothesis from the areas of sensory reinforcement and sensory deprivation is…

The history of the terms "punishment" and "aversive" is traced, and the influence of inconsistent usage and negative association associated with these terms is analyzed. A conceptual framework is presented to guide the choice of an alternative terminology for behavior reduction. (Author/JDD)

Oppositional defiant disorder is an individual diagnosis given commonly to children and adolescents who exhibit a pattern of noncompliant and defiant behaviors. Some children's temperament, behaviors, and interpersonal style merit this diagnosis. Other children, however, exhibit behaviors consistent with this diagnosis within the context of their…

Potential hazards and dangers of using the token economy approach to behavior change with head injured individuals are identified and it is suggested that the injured person's active awareness of reinforcement contingencies may sometimes be deleterious. (DB)

This article examines life space interviewing (LSI) from a behavioral perspective. Professionals' ability to successfully use LSI and the role of feelings in behavior are examined. Reinforcement strategies and environmental conditions are examined. LSI is recommended as a proactive rather than reactive strategy. Suggestions for improving LSI…

This position paper discusses aversive conditioning and other behavior reduction procedures. Environmental modification, differential reinforcement, timeout, overcorrection, and corporal punishment are discussed in terms of current applications, with arguments for and against their inclusion in behavior modification. Eight guidelines are offered…

This article chronicles the development of level systems designed for students with significant behavior problems, to foster student improvement through self-management and positive reinforcement. The article examines assumptions underlying level systems' concepts and components and offers recommendations to guide future research into the design…

This article delineates the reasons why educators find punishment a more acceptable approach for managing students' challenging behaviors than positive reinforcement. The article argues that educators should plan the occurrence of positive reinforcement to increase appropriate behaviors rather than running the risk of it haphazardly promoting…