方法对比

	Pragmatic AB Design	AB设计
领域	实验设计	实验设计
方法族	Process / pipeline	Process / pipeline
起源年份	1968 (AB single-case design); pragmatic framing formalized ~2000s–2010s	1960s
提出者	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
类型	Single-case experimental design	Single-subject experimental design
开创性文献	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.
别名	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
相关	4	4
摘要	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.