In the study conducted with couples viewing the two movies, what is/are advantage(s) of nonparticipant observation?

Question

Quizplus · Accepted Answer

Nonparticipant observation allows researchers to observe variables without subjects' participation, which is beneficial for this study as it avoids potential biases introduced by subjects being aware of being observed. Additionally, pre-test and post-test observations help rule out selection effects as a reason for group differences, and the natural setting of the treatment adds ecological validity to the study. Therefore, all of these advantages (a, b, and c) apply to this study.

In the Study Conducted with Couples Viewing the Two Movies