Definition and Nomenclature Single-Case Experimental Design, often abbreviated as SCED, constitutes a robust and highly specialized methodology within the behavioral and social sciences. Fundamentally, it is defined as a repeated measures design where a single entity—be it a person, a small group treated as a unit, or a specific sampling unit—is intensely observed over an […]
Foundational Principles of the A-B Design The A-B Design represents the most fundamental and elementary configuration within single-subject research methodologies, particularly prevalent in fields such as applied psychology and behavioral analysis. It is essentially a methodology requiring the systematic, repeated measurement of a dependent variable—the behavior or outcome of interest—before the introduction of an intervention, […]
Introduction to the Multiple Baseline Design The Multiple Baseline Design (MBD) stands as one of the most robust and widely utilized methodologies within single-subject research, particularly in the fields of experimental psychology and Applied Behavior Analysis (ABA). It is fundamentally an experimental design where several behavioral items, subjects, or contexts are assessed repeatedly, often simultaneously, […]
Single-Case Methods and Evaluation The Core Definition of Single-Case Research Designs Single-Case Methods and Evaluation, often referred to as Single-Case Research Designs (SCDs) or Single-Case Experimental Designs (SCEDs), constitute a crucial methodology within psychological and educational research, particularly when evaluating the efficacy of clinical or behavioral interventions. At its core, an SCD involves the rigorous, […]
Small-N Experimental Design The Core Definition of Small-N Experimental Design The small-N experimental design, often interchangeably referred to as single-subject design or single-case experimental design, represents a powerful and rigorous methodological approach primarily utilized in fields such as applied behavior analysis, clinical psychology, and education. At its core, this design involves the intensive study of […]