The logic of this design is that if the target behavior improves in the desired direction during the intervention phase and changes toward baseline levels once the treatment is withdrawn, then the investigator can conclude that the treatment was indeed responsible for the improvement of the target behavior:

Question

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The A-B-A design involves a baseline phase (A), an intervention phase (B), and a return to baseline (A). If behavior improves during B and reverts during the second A, it suggests the intervention caused the change.

The Logic of This Design Is That If the Target