This text investigates the rigorous application of single-case research designs to evaluate the efficacy of interventions within special education and behavioral science contexts. Authors David L. Gast and Jennifer R. Ledford provide a comprehensive framework for researchers and practitioners to design, implement, and analyze studies where individual participants serve as their own controls. The book bridges the gap between theoretical methodology and practical application, ensuring that data-driven decision-making remains central to clinical and educational practice. By detailing the nuances of visual analysis and experimental control, the authors establish a standard for evidence-based practice in fields requiring individualized assessment.

Experts in the fields of special education and applied behavior analysis frequently cite this work as a foundational textbook for graduate-level research courses. Readers often note the technical density of the prose, which serves as a reliable reference for practitioners conducting rigorous clinical evaluations.