What is the goal of using mixed standard scales in performance appraisals?

The goal of using mixed standard scales in performance appraisals is primarily focused on reducing rating error by providing specific behavioral examples. Mixed standard scales combine various performance levels and behaviors within a single evaluation framework. By presenting a range of behaviors associated with varying performance levels, this approach allows raters to better visualize what constitutes different degrees of performance and, consequently, provides a more objective basis for their ratings.

This method helps in creating clearer distinctions between different performance levels, which can reduce the potential for subjective interpretations and biases that might otherwise skew the appraisal process. The use of concrete examples helps ensure that performance appraisals are grounded in observable behaviors rather than vague generalizations, thereby enhancing the accuracy and reliability of the evaluations. Mixed standard scales ultimately aim for precision in assessing employee performance through specific, well-defined criteria, making it easier for evaluators to focus on relevant performance indicators.