방법 비교

	Blocked ABA Design	ABA 설계
분야	실험설계	실험설계
계열	Process / pipeline	Process / pipeline
기원 연도	1960s–1970s (ABA baseline); blocking extension developed through applied behavior analysis literature	1968
창시자	ABA reversal logic: Wolf, Risley & Baer (1960s); blocking integration draws on Fisher's randomized block principles applied within single-case methodology	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
유형	Single-subject experimental design with nuisance control	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	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.
별칭	Blocked withdrawal design, ABA design with blocking, Blocked reversal single-subject design	reversal design, withdrawal design, ABA withdrawal design
관련	5	4
요약	The Blocked ABA Design is a single-subject experimental approach that combines the classic ABA reversal logic (baseline, intervention, withdrawal) with block-based session organization to control for time-related or contextual nuisance variation. By grouping observation sessions into blocks — such as days, weeks, or settings — and ensuring phase transitions align to block boundaries, the design isolates the effect of an intervention on an individual participant's repeated behavior measures more rigorously than an unblocked ABA.	The ABA design is a single-subject experimental design that demonstrates experimental control through three sequential phases: a baseline phase (A1), an intervention phase (B), and a return-to-baseline withdrawal phase (A2). By removing the intervention in the final phase and observing whether behavior reverts toward baseline levels, researchers establish a functional relationship between the treatment and the target behavior for an individual participant.