The Test of Supervisory Skills (TOSS), formerly Elements of Supervision, is a 70-item, multiple-choice, untimed test that taps the knowledge required for successful supervision. Based on careful, repeated factor analysis of supervisory behavior, TOSS provides norms that allows a comparison of scores with a large (1,000+) number of supervisory and non-supervisory profile. The new version of this well-established screening instrument includes separate test booklets and self-scoring answer sheets and a revised, enhanced technical and administrative manual. TOSS is a valid instrument for evaluating both applicants for supervisory positions and those being considered for promotion to such positions.