A major reason for using the B-A-B design is that one can begin to work with the problem immediately and still have a logical basis for determining both change and possible causality.

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The B-A-B design, a variation of the A-B-A withdrawal design, allows for immediate intervention (B phase) after an initial baseline (A phase) is established, followed by a return to baseline and another intervention phase. This design helps in quickly addressing the problem while still providing a structured method to assess the effects of the intervention and infer causality by observing changes across different phases.

A Major Reason for Using the B-A-B Design Is That