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	प्रैग्मैटिक सिंगल-सब्जेक्ट एक्सपेरिमेंटल डिज़ाइन	एबी डिज़ाइन
क्षेत्र	प्रयोगात्मक अभिकल्प	प्रयोगात्मक अभिकल्प
परिवार	Process / pipeline	Process / pipeline
उद्भव वर्ष	1960s–1970s (SSED roots); pragmatic framing prominent from 1990s onward	1960s
प्रवर्तक	Applied behavior analysis tradition (Sidman, Baer, Wolf, Risley); pragmatic adaptation from clinical research	Murray Sidman; Baer, Wolf & Risley
प्रकार	Single-case experimental design variant	Single-subject experimental design
मौलिक स्रोत	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.
उपनाम	pragmatic SSED, pragmatic N-of-1 design, real-world single-case design, applied single-subject experimental design	baseline-intervention design, AB single-case design, AB phase design
संबंधित	6	4
सारांश	Pragmatic single-subject experimental design applies the logic of single-case experimentation — repeated measurement, baseline comparison, and phase manipulation — within real-world practice settings rather than controlled laboratories. It allows practitioners and clinicians to rigorously evaluate interventions for individual participants without requiring large samples, making it especially valuable in applied, clinical, and educational contexts where heterogeneity across individuals is high.	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.