مقایسهٔ روش‌ها

	طراحی چند خط پایه متقاطع	طراحی آزمایشی تک‌موضوعی
حوزه	طراحی آزمایش	طراحی آزمایش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1968 (multiple baseline origins); crossover extension developed in behavioral and rehabilitation research from the 1980s onward	1960s (Sidman 1960; formal applied codification by Kazdin and Baer in 1970s–1980s)
پدیدآور	Derived from Baer, Wolf, and Risley (multiple baseline, 1968) and classical crossover design traditions	Murray Sidman (foundational tactics); B. F. Skinner (applied behavior analysis lineage)
نوع	Single-case experimental design with crossover sequencing	Experimental research design
منبع بنیادین	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.	Kazdin, A. E. (1982). Single-Case Research Designs: Methods for Clinical and Applied Settings. Oxford University Press. ISBN: 978-0195030440
نام‌های دیگر	CMBD, crossover MBD, multiple baseline crossover design, within-subject multiple baseline design	SSED, single-case experimental design, n-of-1 design, intrasubject replication design
مرتبط	6	6
خلاصه	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.	Single-subject experimental design (SSED) establishes experimental control by repeatedly measuring one individual (or a small number of individuals) across baseline and intervention phases, using the participant as their own control. Instead of comparing groups, it compares the participant's own behavior across conditions over time. Widely used in applied behavior analysis, special education, rehabilitation, and clinical psychology, SSED allows causal inference from small or unique samples where group designs are impractical.