Rating ability in performance judgments: The joint influence of implicit theories and intelligence

Abstract

The purpose of this study was to approach the issue of rating ability by examining the influence of rater implicit theories and rater intelligence on rating outcomes. Using the inferential accuracy model (Jackson, 1972), raters were identified as either possessing a normative or idiosyncratic implicit theory of the occupation of college instructor. In a laboratory setting, 50 normative and 50 idiosyncratic raters judged the videotaped performance of either a good or poor lecturer. Results showed that (a) intelligence was positively related to rating accuracy and to possessing a normative implicit theory, (b) rater type moderated the relationship between intelligence and rating accuracy, and (c) controlling for intelligence, normative raters committed stronger halo effects than idiosyncratic raters. These results were discussed in relation to furthering the understanding of rating ability.