방법 비교

	교차 다중기초선 설계	ABAB 설계
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1968 (multiple baseline origins); crossover extension developed in behavioral and rehabilitation research from the 1980s onward	1960s (Sidman 1960; Baer et al. 1968)
창시자	Derived from Baer, Wolf, and Risley (multiple baseline, 1968) and classical crossover design traditions	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)
유형	Single-case experimental design with crossover sequencing	Single-subject experimental design
원전	Baer, D. M., Wolf, M. M., & Risley, T. R. (1968). Some current dimensions of applied behavior analysis. Journal of Applied Behavior Analysis, 1(1), 91–97.	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
별칭	CMBD, crossover MBD, multiple baseline crossover design, within-subject multiple baseline design	reversal design, withdrawal design, ABAB reversal, operant reversal design
관련	6	4
요약	The crossover multiple baseline design is a single-case experimental design (SCED) that layers crossover sequencing onto a multiple baseline structure. Across two or more tiers — participants, behaviors, or settings — baselines are staggered in time; then treatments are introduced and later reversed or alternated across tiers, so each tier acts as both a treatment and a control unit. The design provides within-subject replication while controlling for time-related confounds.	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.