The retention of qualified faculty is an important factor in maintaining the identity and professional climate of a medical school. In studying faculty mobility from the institutional point of view, data on faculty attrition is closely examined. A faculty coefficient for each medical school was determined by the ratio of the number of salaried faculty in the school that year. Twenty-seven variables were selected to predict faculty attrition. These variables fall into four broad categories: size of institution, faculty variables, financial variables, and miscellaneous variables. The most notable finding reflects the low correlation of the 27 institutional predictor variables with the criterion. It may be that other institutional variables were not included in the present study that related to faculty attrition, or that few variables capture the variance in common among medical schools regarding faculty attrition. The age of the institution and percent of foreign medical graduates on staff were effective independently in predicting high faculty attrition. (Author/KE)