قارن الطرق

	تصميم ABAB	تصميم الخطوط الأساسية المتعددة
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1960s (Sidman 1960; Baer et al. 1968)	1968
صاحب الطريقة	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
النوع	Single-subject experimental design	Single-subject experimental design
المصدر التأسيسي	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.
الأسماء البديلة	reversal design, withdrawal design, ABAB reversal, operant reversal design	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
ذات صلة	4	4
الملخص	The ABAB design is a single-subject experimental methodology that establishes causal control by repeatedly introducing and removing an intervention. A baseline phase (A) is followed by an intervention phase (B), then a return to baseline (A), and a second intervention phase (B), allowing the researcher to demonstrate that observed behavior changes are produced by the intervention rather than by coincidental factors.	The multiple baseline design is a single-subject experimental design that demonstrates functional control by introducing an intervention at staggered time points across two or more baselines — typically across different behaviors, individuals, or settings. Because no withdrawal of treatment is required, it is especially suitable when the target behavior is irreversible or when removing an effective intervention would be unethical.