BARs are qualitative and quantitative scales used to rate performanc scale to determine performance. BARS is an appraisal method that aims to combine the benefits of narratives, critical incidents, and quantified ratings by anchoring a quantified scale with specific examples of good, moderate, and poor performance. An appraisal that requires raters list important dimensions of a particular job and collects information regarding the critical behaviors that distinguish between successful and unsuccessful performance.
These critical behaviors are then categorized and appointed a numerical value which is used as the basis for rating performance. BARS was initially developed in response to the disapproval of the subjectivity of the traditional rating scales.

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