In this study, the authors assessed the psychometric properties of the Professor-Student Rapport Scale, the first scale to measure professor-student rapport. The scale was found to have adequate test-retest and internal-consistency reliability. In addition to these findings, measures used to determine convergent validity included the Working Alliance Inventory, a social support scale, and a measure of verbal aggressiveness. The rapport scale was found to significantly correlate in the expected direction with these measures. Specifically, the rapport scale correlated positively with the Working Alliance Inventory and the social support scale and correlated negatively with the verbal aggressiveness scale. Applications are discussed in terms of using the scale to identify areas of improvement in teaching practices and the potential usefulness of the scale for predicting student outcomes. (Contains 2 tables.)