In an ABAB reversal design study, a researcher is measuring level of depression with and without the addition of an exercise program. What is the second "B" in the study?

Question

Quizplus · Accepted Answer

In an ABAB reversal design study, the second "B" represents the second phase where the intervention (exercise program) is introduced again after being removed in the first "A" phase. Therefore, in this study, the second "B" represents the level of depression when the exercise program is reintroduced after being taken away in the first "A" phase. Thus, the second "B" refers to the condition of depression with the addition of exercise.

In an ABAB Reversal Design Study, a Researcher Is Measuring