In the 25 years since the publication of the article reprinted in this issue of "Behavioral Disorders", a tremendous amount of research and opinion has been published on the topics of functional analysis, functional assessment, and assessment-based interventions. In this commentary, we reflect on the context in which our original work…

In the past two decades, positive behavior support (PBS) has emerged from applied behavior analysis (ABA) as a newly fashioned approach to problems of behavioral adaptation. ABA was established in the 1960s as a science in which learning principles are systematically applied to produce socially important changes in behavior, whereas PBS was…

The articles in this special Practitioner's Edition of "Psychology in the Schools" share the application of sound educational and behavioral practices in real school and classroom contexts. Given this emphasis in these articles on the applied use of behavioral practices, the purpose of this brief commentary is to highlight and comment on some of…

It is customary in behavior analysis to distinguish between positive and negative reinforcement in terms of whether the reinforcing event involves onset or offset of a stimulus. In a previous article (Baron & Galizio, 2005), we concluded that a distinction of these terms is not only ambiguous but has little if any functional significance. Here, we…

Evaluates the concept of "establishing operation" (EO) in the functional analysis of problem behavior in people with developmental disabilities. Suggestions for detecting "conditioned establishing operations" are offered. Also discusses the development of treatment strategies that seek to modify EOs, extinguish EOs, and modify…

This discussion of positive behavior support for people with disabilities identifies four themes: (1) behavior support should reduce problem behavior and affect how a person lives; (2) functional assessment is the foundation for understanding patterns of problem behavior; (3) behavior support should be comprehensive in structure and scope; and (4)…

This article introduces this special issue on functional assessment methods and their application to children and youth with autism. It traces the 30-year history of functional assessment and briefly summarizes each of the following articles, noting the common emphasis on social validity and using the science and technology of functional…

The author found it very satisfying to reread "Toward a technology of 'nonaversive' behavioral support," written in 1990 by Rob Horner and seven of his colleagues. Their predictions of the critical themes for advancing positive behavior support (PBS) ring true. Fifteen years have passed since the publication of this article, and much has happened…

This article discusses the contributions of applied behavior analysis (ABA) in effective instruction of students with autism spectrum disorders. Emphasis is on the use of antecedent interventions and curriculum-based assessment. It also notes that the principles and methods of ABA are being integrated into routine educational procedures, including…