The A-B-A-B design
A) avoids the problem of ending an experiment with withdrawal or reversal of the treatment.
B) eliminates the possibility that an observed treatment effect will be dependent on the particular baseline conditions included in the experiment.
C) has lower internal validity than the A-B-A design.
D) all of the above.

Question

Quizplus · Accepted Answer

The A-B-A-B design avoids the problem of ending an experiment with withdrawal or reversal of the treatment by reintroducing the treatment after the second baseline (withdrawal phase), allowing for a clearer demonstration of the treatment's effects.

The A-B-A-B Design