DEVELOPMENT OF A BEHAVIORALLY BASED PERFORMANCE APPRAISAL SYSTEM

This paper describes the development of a behaviorally based performance appraisal system. Blanz and Ghiselli's Mixed Standard Scale was used as the basis for developing the performance appraisal system for assessing the performance of highway patrol personnel. However, the particular developmental procedures described here differ in some respects from those reported in the literature. Rather than developing rating items describing general traits such as "diligence,""initiative," or "enthusiasm" in behavioral terms, the items in the present scale were developed to describe proficiency levels of specific job tasks. This characteristic is expected to enhance the objectivity of the evaluation system for both appraisal and job counseling purposes. The appraisal instrument was subjected to a series of reliability and validity tests that demonstrated its high reliability and validity. Although the content of the appraisal sytem desribed here included highway patrol tasks, a similar system could be developed using the procedures described for a wide variety and level of jobs.