قارن الطرق

	تصميم تجريبي مزدوج التعمية أحادي الحالة	تصميم ABA
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1970s–1980s (systematic integration of blinding into SCED)	1968
صاحب الطريقة	Barlow, Hersen, and colleagues (single-subject tradition); double-blind masking adapted from clinical trial methodology	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
النوع	Experimental single-subject design with double-blind masking	Single-subject experimental design
المصدر التأسيسي	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.
الأسماء البديلة	double-blind SCED, double-blind single-case experimental design, masked single-subject design, double-blind N-of-1 design	reversal design, withdrawal design, ABA withdrawal design
ذات صلة	5	4
الملخص	A double-blind single-subject experimental design applies systematic masking — concealing treatment assignment from both the participant and the outcome assessor — within a within-person repeated-measures framework. It is used when researchers need strong causal inference about an intervention's effect on a single individual while guarding against placebo responses and observer bias. Particularly prominent in pharmacological, behavioral, and clinical rehabilitation research.	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.