The central roles of science in the field of remedial and special education are to (a) identify basic laws of nature and (b) apply those laws in the design of practices that achieve socially valued outcomes. The scientific process is designed to allow demonstration of specific (typically positive) outcomes, and to assist in the attribution of…

In recent years, single-case designs have increasingly been used to establish an empirical basis for evidence-based interventions and techniques in a variety of disciplines, including psychology and education. Although traditional single-case designs have typically not met the criteria for a randomized controlled trial relative to conventional…

Data collected in school settings are inherently hierarchical. At the same time, it is becoming increasingly common for interventions to be implemented within the context of a similar multitiered intervention framework where different interventions are provided at different levels of the hierarchy, often simultaneously. This prevalence of…

A review of the conceptual and methodological considerations in assessment and treatment of children's fears and phobias is presented. Areas discussed include the definitional problems in the field, analogue and clinical research, experimental research methods, and criteria for the evaluation of outcome in fear and phobia research. (Author/DWH)

Single subject (N=1) research strategies deserve increased emphasis in the training of school psychologists. Single subject methodology has demonstrated credibility in research and in monitoring effects of professional interventions. Presented at the 8th Annual Convention of the National Association of School Psychologists in Kansas City, Kansas,…