Walster and Festinger Conducted an Experiment in Which Subjects "Overheard

Multiple Choice

Walster and Festinger conducted an experiment in which subjects "overheard" a conversation between two graduate students, one of whom expressed an opinion on a certain issue. Subjects' opinions were influenced by the graduate student's opinion when:

A) the graduate student had previously performed a favor for the subject.
B) the subject believed the graduate students were unaware of his or her presence.
C) the graduate student was an expert on the particular issue in question.
D) the graduate student presented a two-sided argument regarding the issue in question.