• In-Sue Oh, Gang Wang, and Michael K Mount.
• Department of Management, School of Business, Virginia Commonwealth University, 301 West Main Street, Box 844000, Richmond, VA 23284, USA. isoh@vcu.edu
• J Appl Psychol. 2011 Jul 1; 96 (4): 762-73.

AbstractConclusions reached in previous research about the magnitude and nature of personality-performance linkages have been based almost exclusively on self-report measures of personality. The purpose of this study is to address this void in the literature by conducting a meta-analysis of the relationship between observer ratings of the five-factor model (FFM) personality traits and overall job performance. Our results show that the operational validities of FFM traits based on observer ratings are higher than those based on self-report ratings. In addition, the results show that when based on observer ratings, all FFM traits are significant predictors of overall performance. Further, observer ratings of FFM traits show meaningful incremental validity over self-reports of corresponding FFM traits in predicting overall performance, but the reverse is not true. We conclude that the validity of FFM traits in predicting overall performance is higher than previously believed, and our results underscore the importance of disentangling the validity of personality traits from the method of measurement of the traits.

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