frequency of the identified behavioral anchors, usually along a five-point scale from"almost never" to"almost always." These differences between behavioral expectation scales and behavioral observation scales can best be seen by contrasting Figures 12-7 and 12-8. In Figure 12-8, the anchors used in Figure 12-7 have been converted into frequency ranges.
A pair of researchers found that a year after BOS were installed in a company, senior management reported satisfaction with this method. They believed that this minimized personality disputes, enabled raters to explain low ratings, led to comprehensive reviews, and improved feedback between raters and workers.
Behaviorally anchored rating scales are complex to develop and administer. Their development considers specific job-related behaviors, which appear to make their validity more defensible than is the case with ratings based on subjective personality traits. However, this job-specific feature makes them costly and time-consuming to develop since they must be developed for each job.