This study reported the development of a set of scales to measure the self, task, and impact dimensions of teacher communication concern. Three stages of instrument development were described: item construction, testing of the hypothesized factor structure, and reliability and validity information. The result was a 15-item instrument with three subscales. In an effort to refine the conceptualization of teacher communication concern, a secondary purpose of the study was to examine the relationship of teacher communication concern to two variables: anxiety about teaching and attitude toward teaching as a career. Results were that teacher communication concern was not related to anxiety about teaching, but was positively related to attitude about teaching.