قارن الطرق

	تصميم خطوط الأساس المتعددة المحظورة	تصميم الخطوط الأساسية المتعددة
المجال	التصميم التجريبي	التصميم التجريبي
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1968 (multiple baseline foundation); blocking variant codified 1980s–1990s	1968
صاحب الطريقة	Baer, Wolf & Risley (multiple baseline); blocking extension developed in applied behavior analysis literature	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
النوع	Single-subject experimental design with blocking	Single-subject experimental design
المصدر التأسيسي	Cooper, J. O., Heron, T. E., & Heward, W. L. (2020). Applied Behavior Analysis (3rd ed.). Pearson. ISBN: 978-0134752556	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	blocked MBD, blocked multiple-baseline, blocked multiple baseline across subjects, blocked SSED multiple baseline	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
ذات صلة	3	4
الملخص	A blocked multiple baseline design is a single-subject experimental approach that combines the logic of the multiple baseline design with blocking — the systematic grouping of participants, behaviors, or settings into matched sets — to reduce extraneous variability and strengthen causal inference. The intervention is introduced in a staggered sequence across baselines within each block, demonstrating experimental control through replication within and across blocks.	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.