Research indicates that perceptual characteristics (attitudes about oneself, students, and the task of teaching) are indicators of teacher effectiveness. A major problem that has limited the application of this research to teacher selection has been the difficulty involved in assessing perceptual orientation. This study was designed to develop and test self-instructional materials which could help to assess the attitudes of teacher candidates. Results indicate that training with the self-instructional materials may provide more objective or uniform criteria by which to make evaluations that traditionally have been ignored or left solely to intuition. (Author/CJ)