This document reports on a study designed to determine if there are significant identifiable differences in personality traits of outstanding, regular, and provisional secondary science teachers in Mississippi. Combinations of factors that differentiated the three groups were also investigated. The scores of typical outstanding science teachers indicated that they were fast learners and quick to grasp new ideas. They tended to be tough, self-reliant, realistic, independent, and "down to earth." Outstanding teachers appeared to be self-assured, confident, and accustomed to going their own way. Group characteristics were determined to include resourcefulness and a preference for making their own decisions. Their scores also indicated that they were venturesome and socially bold. However, they also indicated a tendency to be serene and careless of detail. (TW)