手法を比較

	Pragmatic AB Design	AB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	1960s
提唱者	Rooted in applied behavior analysis (Baer, Wolf, Risley, 1968); pragmatic framing developed across clinical and educational single-case research traditions	Murray Sidman; Baer, Wolf & Risley
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	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
別名	pragmatic single-case AB design, real-world AB design, AB phase design, naturalistic AB design	baseline-intervention design, AB single-case design, AB phase 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 AB design is the simplest single-subject experimental design, consisting of two sequential phases: a baseline phase (A) in which the target behavior is observed under natural conditions without intervention, followed by an intervention phase (B) in which the treatment or manipulation is introduced. Changes in the behavior's level, trend, or variability between phases are used to infer the effect of the intervention on the individual participant.