手法を比較

	Pragmatic AB Design	ABAデザイン
分野	実験計画法	実験計画法
系統	Process / pipeline	Process / pipeline
提唱年	1968 (AB single-case design); pragmatic framing formalized ~2000s–2010s	1968
提唱者	Rooted in applied behavior analysis (Baer, Wolf, Risley, 1968); pragmatic framing developed across clinical and educational single-case research traditions	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
種類	Single-case experimental design	Single-subject experimental design
原典	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.
別名	pragmatic single-case AB design, real-world AB design, AB phase design, naturalistic AB design	reversal design, withdrawal design, ABA withdrawal design
関連	4	4
概要	The Pragmatic AB Design is a single-case experimental design that collects repeated measurements of one individual or unit across two consecutive phases: a baseline phase (A) with no intervention, followed by an intervention phase (B). Deployed in real-world, clinically feasible conditions rather than tightly controlled laboratory settings, it is widely used in behavioral health, rehabilitation, education, and applied psychology to generate actionable evidence about individual-level treatment effects.	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.