To ensure the quality of training, skills developed and maintained, and expected standards for behavior analysts, several systems have been put into place across the years. Of these systems, perhaps the most widespread was the development of the Behavior Analyst Certification Board in 1998. Once all requirements are met, the final determinative…

Background: Behavioural interventions conceptualise self-injurious behaviour (SIB) as developing from early repetitive behaviours through acquisition of homeostatic functions in regulating stimulation and subsequent shaping into SIB through socially mediated or automatic operant reinforcement. Despite high success rates, such interventions rarely…

The purpose of this experiment was to establish discriminative control of responding by an antecedent stimulus using differential punishment because the results of past studies on this topic have been mixed. Three adults with mental retardation who exhibited stereotypy not maintained by social consequences (i.e., automatic reinforcement)…

We begin with the suggestion that the definition of Attention Deficit Hyperactive Disorder (ADHD) still faces some challenges. Conceptually, inhibition of the Pavlovian kind preexisted the "behavioral inhibition" popular in the USA; the difference between them has to be understood in order to understand ADHD. The present project examines…

Reinforcers lose their effectiveness when they are presented repeatedly. Early researchers labeled this loss of effectiveness as "satiation" without conducting an experimental analysis. When such an analysis is conducted, "habituation" provides a more precise and empirically accurate label for the changes in reinforcer effectiveness. This paper…