Behaviorally Anchored Rating Scales differs from rating scales because instead of using adjectives at each scale point,Behaviorally Anchored Rating Scales uses behavioral anchors related to the criterion being measured. This modification clarifies the meaning of each point on the scale and reduces rater bias and error by anchoring the rating with specific behavioral examples based on job analysis information . Instead of providing a space for entering a rating figure for a category such as Above Expectations, the Behaviorally Anchored Rating Scales method provides examples of such behavior. This approach facilitates discussion of the rating because specific behaviors can be addressed. It was developed to overcome weaknesses in other evaluation methods. Regardless of apparent advantages of Behaviorally Anchored Rating Scales , reports on its effectiveness are mixed, and it does not seem to be superior to other methods in overcoming rater errors or in achieving psychometric soundness. A specific deficiency is that the behaviors used are activity oriented rather than results oriented. Also, the method may not be economically feasible since each job category requires its own Behaviorally Anchored Rating Scales . On the positive side, because the system is job related, it is relatively invulnerable to legal challenge