قارن الطرق

	تصميم الخط الأساسي المتعدد مزدوج التعمية	تصميم الخطوط الأساسية المتعددة
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1968 (multiple baseline); double-blind extension applied from 1980s onward in clinical behavioral research	1968
صاحب الطريقة	Multiple baseline: Baer, Wolf & Risley (1968); double-blind procedural extension adapted from clinical trial methodology	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
النوع	Single-subject experimental design with blinded outcome assessment	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	DB-MBD, blinded multiple baseline design, masked multiple baseline design, double-blind MBD	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
ذات صلة	5	4
الملخص	The double-blind multiple baseline design is a single-subject experimental design in which an intervention is introduced sequentially across two or more independent baselines — behaviors, individuals, or settings — while outcome assessors (and ideally participants) remain unaware of which baseline is currently in the intervention phase. The double-blind procedural overlay reduces measurement bias and demand characteristics, strengthening causal inference beyond what a standard multiple baseline design offers.	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.