In a graph of the results from an ABAB reversal design, which feature justifies a conclusion that the treatment causes changes in behavior?
A) The size of the change in behavior when the treatment is first introduced
B) The time delay between the introduction of the treatment and the first change in magnitude of change
C) A permanent change in behavior that continues even after the treatment is withdrawn
D) A demonstration that behavior changes consistently when the treatment is introduced, withdrawn, and introduced again

Question

Quizplus · Accepted Answer

The demonstration that behavior changes consistently when the treatment is introduced, withdrawn, and introduced again is the key feature that justifies a conclusion that the treatment causes changes in behavior. This consistent pattern of behavior change across the reversal phases (ABAB) supports the idea that the treatment is responsible for the observed differences in behavior. The other options (A, B, and C) may be relevant to interpreting the results, but they do not provide direct evidence that the treatment caused the behavioral changes.

In a Graph of the Results from an ABAB Reversal