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	डबल-ब्लाइंड एबी डिज़ाइन	एबी डिज़ाइन
क्षेत्र	प्रयोगात्मक अभिकल्प	प्रयोगात्मक अभिकल्प
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1960s (AB design); double-blinding integration in single-case clinical research from the 1980s–1990s	1960s
प्रवर्तक	Derived from the AB single-subject design tradition (Sidman 1960; Baer, Wolf, & Risley 1968) combined with double-blinding conventions from clinical trial methodology	Murray Sidman; Baer, Wolf & Risley
प्रकार	Single-subject experimental design with double-blinding	Single-subject experimental design
मौलिक स्रोत	Kazdin, A. E. (1982). Single-Case Research Designs: Methods for Clinical and Applied Settings. Oxford University Press. ISBN: 978-0195030440	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
उपनाम	blinded AB design, double-blind single-case AB, masked AB design, double-blind baseline-intervention design	baseline-intervention design, AB single-case design, AB phase design
संबंधित	5	4
सारांश	The double-blind AB design is a single-subject experimental approach that sequences a baseline phase (A) and an intervention phase (B) while concealing phase allocation from both the participant and the outcome assessor. It merges the idiographic focus of single-case methodology with the bias-control mechanism of double-blinding, making it especially useful in clinical rehabilitation, pain research, and behavioral medicine when objective measurement of an individual's response to treatment is the primary goal.	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.