Which one of the following is a reversal design?
A) Pretest-posttest design
B) Interrupted time series design
C) ABAB design
D) Multiple baselines design

Question

Quizplus · Accepted Answer

The ABAB design is a reversal design where the intervention is applied, then removed (baseline returns), then applied again, and removed again. This allows for repeated measurement under different conditions and is useful for evaluating the effectiveness of interventions. A) Pretest-posttest design is not a reversal design, it measures outcomes before and after an intervention. B) Interrupted time series design evaluates the effects of an intervention by measuring outcomes at multiple time points before and after the intervention. D) Multiple baselines design is a type of alternating treatment design that compares the effects of multiple interventions on different behaviors or individuals, but does not involve a true reversal of conditions.

Which One of the Following Is a Reversal Design