DEVELOPMENT OF A JOB ANALYSIS-BASED PROCEDURE FOR WEIGHTING AND COMBINING CONTENT-RELATED TESTS INTO A SINGLE TEST BATTERY SCORE

By definition, content-related approaches to test validation do not re ly on criterion data. As a consequence, regression and other statistic al procedures for weighting and generating a composite score from a te st battery are not applicable when a content-related validation strate gy is used. This paper presents a procedure for determining the compon ent weights for a test battery that has been developed on the basis of a content-related validity strategy. The Relative Content Contributio n (RCC) weighting procedure is a logical extension of the conceptual b asis underlying the rational developmental process used to demonstrate the validity of content-related tests. Results from field implementat ions of the procedure in the development of two promotional test batte ries (fire and police) and an entry-level test battery (police) in two large metropolitan cities are presented to illustrate the procedure.