BUS603: Managing People

An appraisal system that has received increasing attention in recent years is the behaviorally anchored rating scale (BARS). This system requires considerable work prior to evaluation but, if the work is carefully done, can lead to highly accurate ratings with high inter-rater reliability. Specifically, the BARS technique begins by selecting a job that can be described in observable behaviors. Managers and personnel specialists then identify these behaviors as they relate to superior or inferior performance.

An example of this is shown in Exhibit 8.4, where the BARS technique has been applied to the job of college professor. As shown, as one moves from extremely poor performance to extremely good performance, the performance descriptions, or behavioral anchors, increase. Oftentimes, six to ten scales are used to describe performance on the job. Exhibit 8.4 evaluates the professor's organizational skills. Other scales could relate to the professor's teaching effectiveness, knowledge of the material, availability to students, and fairness in grading. Once these scales are determined, the evaluator has only to check the category that describes what she observes on the job, and the employee's rating is simultaneously determined. The BARS technique has several purported advantages. In particular, many of the sources of error discussed earlier (central tendency, leniency, halo) should be significantly reduced because raters are considering verbal descriptions of specific behaviors instead of general categories of behaviors, such as those used in graphic rating scales. In addition, the technique focuses on job-related behaviors and ignores less relevant issues such as the subordinate's personality, race, or gender. This technique should also lead to employees being less defensive during performance appraisals, because the focus of the discussion would be actual measured behaviors, not the person. Finally, BARS can aid in employee training and development by identifying those domains needing most attention.

Exhibit 8.4 A Behaviorally Anchored Scale for Rating College Professors

On the negative side, as noted above, considerable time and effort in designing the forms are required before the actual rating. Because a separate BARS is required for each distinct job, it is only cost-efficient for common jobs. Finally, because the technique relies on observable behaviors, it may have little applicability for such jobs in such areas as research science (and sometimes management), where much of the work is mental and relevant observable behaviors are difficult to obtain.