مقایسهٔ روش‌ها

	طرح تک‌کور ABAB	طرح ABA
حوزه	طراحی آزمایش	طراحی آزمایش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1960s (ABAB logic); single-blind adaptation formalized in applied behavior analysis from 1970s onward	1968
پدیدآور	B. F. Skinner (reversal logic); blinding conventions adapted from clinical trial methodology	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
نوع	Single-case experimental design with partial blinding	Single-subject experimental design
منبع بنیادین	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.
نام‌های دیگر	single-blind reversal design, single-masked ABAB design, blinded single-case reversal design, single-blind withdrawal design	reversal design, withdrawal design, ABA withdrawal design
مرتبط	5	4
خلاصه	The single-blind ABAB design is a single-case experimental approach that sequences two baseline phases (A) and two intervention phases (B) to demonstrate experimental control over a target behavior, while keeping one party — typically the outcome assessor or the participant — unaware of current phase assignment. This blinding procedure reduces observer bias or demand characteristics, strengthening the internal validity of the reversal logic.	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.