방법 비교

	실용적 단일 대상 실험 설계	ABAB 설계
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1960s–1970s (SSED roots); pragmatic framing prominent from 1990s onward	1960s (Sidman 1960; Baer et al. 1968)
창시자	Applied behavior analysis tradition (Sidman, Baer, Wolf, Risley); pragmatic adaptation from clinical research	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)
유형	Single-case experimental design variant	Single-subject experimental design
원전	Kazdin, A. E. (2011). Single-Case Research Designs: Methods for Clinical and Applied Settings (2nd ed.). Oxford University Press. ISBN: 978-0195341881	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
별칭	pragmatic SSED, pragmatic N-of-1 design, real-world single-case design, applied single-subject experimental design	reversal design, withdrawal design, ABAB reversal, operant reversal design
관련	6	4
요약	Pragmatic single-subject experimental design applies the logic of single-case experimentation — repeated measurement, baseline comparison, and phase manipulation — within real-world practice settings rather than controlled laboratories. It allows practitioners and clinicians to rigorously evaluate interventions for individual participants without requiring large samples, making it especially valuable in applied, clinical, and educational contexts where heterogeneity across individuals is high.	The ABAB design is a single-subject experimental methodology that establishes causal control by repeatedly introducing and removing an intervention. A baseline phase (A) is followed by an intervention phase (B), then a return to baseline (A), and a second intervention phase (B), allowing the researcher to demonstrate that observed behavior changes are produced by the intervention rather than by coincidental factors.