Why Do Researchers Remove the Treatment Condition During the Second

Multiple Choice

Why do researchers remove the treatment condition during the second A phase of an A-B-A single-case experiment?

A) They only remove the treatment if it has not been shown to be effective.
B) Researchers do not have enough resources to continue the treatment after a certain period of time.
C) If an effective treatment is removed and the behavior reverts to baseline, researchers can be confident that the treatment and not an extraneous variable is causing the change.
D) None of the above.