An advantage of the ABAB reversal design over the ABA design is that it:
A)is less expensive.
B)allows for fewer alternative explanations for the results.
C)can be used in clinical research.
D)is less time consuming.

Question

Quizplus · Accepted Answer

The ABAB reversal design allows for fewer alternative explanations for the results compared to the ABA design because the reversal phase helps to establish a causal relationship between the intervention and the behavior change. This is because if the behavior changes again during the intervention phase, it strengthens the evidence that the intervention is responsible for the behavior change. Thus, the ABAB reversal design is considered to have more internal validity than the ABA design, which only has a single intervention phase.

An Advantage of the ABAB Reversal Design Over the ABA