The credibility of a single-subject experiment is based on
A) the extent of intersubject reliability.
B) the extent to which behavior changes as treatment changes.
C) how well regression as a threat to internal validity is controlled.
D) the extent to which there is random assignment to treatments.

Question

Quizplus · Accepted Answer

The credibility of a single-subject experiment is based on how well the behavior changes as treatment changes. In other words, if the treatment has a clear and consistent effect on the behavior of the individual subject, this increases the credibility of the experiment. Other factors such as regression and random assignment are not as relevant in single-subject designs, as they focus on individual behavior rather than group comparisons.

The Credibility of a Single-Subject Experiment Is Based on