This paper presents the empirical basis for the phenomena known as stimulus overselectivity. Stimulus overselectivity involves responding on the basis of a restricted range of elements or features that are discriminative for reinforcement. The manner in which such a response pattern impedes the skill acquisition in children is identified. A…

Universal screening has been routinely advised for determining the presence of problems for initiating problem-solving processes and models. The aim of this study was to assess the effect of two screener development methods on the validity of score inferences for two teacher screeners of child behavioral and emotional risk. The reliability and…

Issues concerning evaluation, assessment, and classification of Attention-Deficit Hyperactive Disorders (ADHD) are discussed. The diagnosis of ADHD should be a best-estimate diagnosis, based on a behavioral assessment strategy with multimethod assessment. The selection and use of assessment techniques are discussed. (SLD)