השוואת שיטות

	תכנון מרובה קווי בסיס	עיצוב ABAB
תחום	תכנון ניסויים	תכנון ניסויים
משפחה	Process / pipeline	Process / pipeline
שנת המקור	1968	1960s (Sidman 1960; Baer et al. 1968)
הוגה השיטה	Donald M. Baer, Montrose M. Wolf, Todd R. Risley	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)
סוג	Single-subject experimental design	Single-subject experimental design
מקור מכונן	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.	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.
כינויים	MBD, multiple-baseline single-case design, staggered baseline design, multiple-probe design	reversal design, withdrawal design, ABAB reversal, operant reversal design
קשורות	4	4
תקציר	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.	The ABAB design is a single-subject experimental methodology that establishes causal control by repeatedly introducing and removing an intervention. A baseline phase (A) is followed by an intervention phase (B), then a return to baseline (A), and a second intervention phase (B), allowing the researcher to demonstrate that observed behavior changes are produced by the intervention rather than by coincidental factors.