Designed to investigate intra-audience effects in a field setting, this study tested three hypotheses: (1) subjects who are exposed to favorable audience responses by confederates will display more favorable assessments than subjects who are exposed to less favorable responses; (2) subjects who are exposed to favorable audience responses will remain longer than subjects who are exposed to less favorable responses; and (3) subjects who are exposed to favorable responses will indicate a greater desire to return than will subjects who are exposed to less favorable responses. Subjects for the study were 60 students enrolled in four basic communication courses during the summer term of 1974 at Michigan State University. The hypotheses were confirmed. The present study provides evidence for the existence and importance of intra-audience effects in a field setting, although there are some control problems in a field setting. (RB)