Methoden vergleichen

	ABAB-Design – Reversal-/Withdrawal-Design	ABA-Design
Fachgebiet	Versuchsplanung	Versuchsplanung
Familie	Process / pipeline	Process / pipeline
Entstehungsjahr	1960s (Sidman 1960; Baer et al. 1968)	1968
Urheber	Murray Sidman; Baer, Wolf & Risley (applied behavior analysis formalization)	Montrose Wolf, Donald Baer, Todd Risley (applied behavior analysis tradition)
Typ	Single-subject experimental design	Single-subject experimental design
Wegweisende Quelle	Sidman, M. (1960). Tactics of Scientific Research: Evaluating Experimental Data in Psychology. Basic Books.	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.
Aliasnamen	reversal design, withdrawal design, ABAB reversal, operant reversal design	reversal design, withdrawal design, ABA withdrawal design
Verwandt	4	4
Zusammenfassung	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.	The ABA design is a single-subject experimental design that demonstrates experimental control through three sequential phases: a baseline phase (A1), an intervention phase (B), and a return-to-baseline withdrawal phase (A2). By removing the intervention in the final phase and observing whether behavior reverts toward baseline levels, researchers establish a functional relationship between the treatment and the target behavior for an individual participant.