قارن الطرق

	تصميم التبديل ABAB	تصميم الخطوط الأساسية المتعددة
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1960s–1970s	1968
صاحب الطريقة	Murray Sidman and colleagues in applied behavior analysis	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
النوع	Single-subject experimental design	Single-subject experimental design
المصدر التأسيسي	Barlow, D. H., Nock, M. K., & Hersen, M. (2009). Single Case Experimental Designs: Strategies for Studying Behavior Change (3rd ed.). Pearson. ISBN: 978-0205474929	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	ABAB reversal design, reversal design, withdrawal design, ABAB single-subject design	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
ذات صلة	2	4
الملخص	The crossover ABAB design is a single-subject experimental design that alternates between baseline (A) and intervention (B) conditions twice within the same participant. By withdrawing and reintroducing the treatment, the researcher can demonstrate experimental control: if behavior improves with B and reverts with A, the causal link between the intervention and the outcome is established without a separate control group.	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.