השוואת שיטות

	עיצוב ABAB עם סמיות יחידה	תכנון מרובה קווי בסיס
תחום	תכנון ניסויים	תכנון ניסויים
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1960s (ABAB logic); single-blind adaptation formalized in applied behavior analysis from 1970s onward	1968
הוגה השיטה	B. F. Skinner (reversal logic); blinding conventions adapted from clinical trial methodology	Donald M. Baer, Montrose M. Wolf, Todd R. Risley
סוג	Single-case experimental design with partial blinding	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	single-blind reversal design, single-masked ABAB design, blinded single-case reversal design, single-blind withdrawal design	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design
קשורות	5	4
תקציר	The single-blind ABAB design is a single-case experimental approach that sequences two baseline phases (A) and two intervention phases (B) to demonstrate experimental control over a target behavior, while keeping one party — typically the outcome assessor or the participant — unaware of current phase assignment. This blinding procedure reduces observer bias or demand characteristics, strengthening the internal validity of the reversal logic.	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.