เปรียบเทียบวิธี

	การออกแบบแบบ AB	การออกแบบ ABA
สาขาวิชา	การออกแบบการทดลอง	การออกแบบการทดลอง
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1960s	1968
ผู้ริเริ่ม	Murray Sidman; Baer, Wolf & Risley	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
ประเภท	Single-subject experimental design	Single-subject experimental design
แหล่งต้นตำรับ	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.	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.
ชื่อเรียกอื่น	baseline-intervention design, AB single-case design, AB phase design	reversal design, withdrawal design, ABA withdrawal design
ที่เกี่ยวข้อง	4	4
สรุป	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.	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.