قارن الطرق

	تصميم خط الأساس المتعدد المتقاطع	تصميم الخطوط الأساسية المتعددة
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1968 (multiple baseline origins); crossover extension developed in behavioral and rehabilitation research from the 1980s onward	1968
صاحب الطريقة	Derived from Baer, Wolf, and Risley (multiple baseline, 1968) and classical crossover design traditions	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
النوع	Single-case experimental design with crossover sequencing	Single-subject experimental design
المصدر التأسيسي	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.	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	CMBD, crossover MBD, multiple baseline crossover design, within-subject multiple baseline design	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
ذات صلة	6	4
الملخص	The crossover multiple baseline design is a single-case experimental design (SCED) that layers crossover sequencing onto a multiple baseline structure. Across two or more tiers — participants, behaviors, or settings — baselines are staggered in time; then treatments are introduced and later reversed or alternated across tiers, so each tier acts as both a treatment and a control unit. The design provides within-subject replication while controlling for time-related confounds.	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.