השוואת שיטות

	מערך ABA חסום	תכנון מרובה קווי בסיס
תחום	תכנון ניסויים	תכנון ניסויים
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1960s–1970s (ABA baseline); blocking extension developed through applied behavior analysis literature	1968
הוגה השיטה	ABA reversal logic: Wolf, Risley & Baer (1960s); blocking integration draws on Fisher's randomized block principles applied within single-case methodology	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
סוג	Single-subject experimental design with nuisance control	Single-subject experimental design
מקור מכונן	Kazdin, A. E. (2011). Single-Case Research Designs: Methods for Clinical and Applied Settings (2nd ed.). Oxford University Press. ISBN: 978-0195341881	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.
כינויים	Blocked withdrawal design, ABA design with blocking, Blocked reversal single-subject design	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
קשורות	5	4
תקציר	The Blocked ABA Design is a single-subject experimental approach that combines the classic ABA reversal logic (baseline, intervention, withdrawal) with block-based session organization to control for time-related or contextual nuisance variation. By grouping observation sessions into blocks — such as days, weeks, or settings — and ensuring phase transitions align to block boundaries, the design isolates the effect of an intervention on an individual participant's repeated behavior measures more rigorously than an unblocked ABA.	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.