This study examined the effects of high and low communication inhibition on small group interaction. Communication inhibition was identified in terms of a scale developed through the factor analysis of the Personal Report of Confidence as a Speaker--Short Form, the Personal Report of Communication Apprehension--College, and Unwillingness to Communicate Scale. It was hypothesized that individuals reporting high communication inhibition would interact less in a small group; be ranked lower on leadership ability, interpersonal effectiveness, and peer credibility; and find less satisfaction with the outcome of their group discussion than individuals reporting low communication inhibition. Only the hypothesis relating to satisfaction failed to be confirmed. It is concluded that communication inhibition must be considered a multidimensional construct, and the specific hypotheses tested in the study are discussed in terms of their significance for small group research. (Author/TS)