Effectiveness of performance feedback from behaviorally anchored rating scales

Compared a behaviorally anchored rating scale (BARS) developed according to the procedure of H. Bernardin et al with a summated rating scale. Using both scale formats (designed to evaluate teaching effectiveness), 859 undergraduates rated 32 instructors during spring classes, and 314 undergraduates rated 19 instructors during summer classes. Students rated instructors halfway through the course and at its end. Instructors received feedback from the 1st rating period on either the BARS (including written behavioral observations) or on the summated rating format. Analyses of covariance revealed no format effect on the performance ratings obtained during the 2nd rating period in the spring experiment. BARS feedback, however, produced greater behavioral change among instructors than did feedback from the alternative format used during the summer experiment. (34 ref) (PsycINFO Database Record (c) 2006 APA, all rights reserved).