Developing a Competency Scale for Hands-on Measures of Job Proficiency

To make informed decisions concerning the allocation and management of military personnel, policymakers must have information that reflects the competence of their personnel -- the extent to which individuals can perform their job requirements. The Marine Corps Job Performance Measurement Project is a significant research effort to produce measures of job proficiency that will allow for such an absolute interpretation of test scores. This research contribution describes a test construction technique that results in the estimation of competency scores. Although the distribution of competency scores has implicit meaning with respect to a domain of job requirements, policymakers often have little knowledge of whether a particular score is acceptable or not. The interpretation of competency scores can be enhanced by establishing interpretative anchors for various performance levels of the competency score distribution. These interpretative anchors assist policymakers by providing a concrete reference against which to base their decisions and are essential in establishing the linkage of aptitude and job performance in determining enlistment standards.