Validity of Observer Ratings of the Big Five Personality Factors Academic Article uri icon


  • The authors examined the validity of observer ratings (supervisor, coworker, and customer) and self-ratings of personality measures. Results based on a sample of 105 sales representatives supported the 2 hypotheses tested. First, supervisor, coworker, and customer ratings of the 2 job-relevant personality dimensions-conscientiousness and extraversion-were valid predictors of performance ratings, and the magnitude of the validities were at least as large as for self-ratings. Second, supervisor, coworker, and customer ratings accounted for significant variance in the criterion measure beyond self-ratings alone for the relevant dimensions. Overall, the results suggest that validities of personality measures based on self-assessments alone may underestimate the true validity of personality constructs.

published proceedings

  • Journal of Applied Psychology

altmetric score

  • 1

author list (cited authors)

  • Mount, M. K., Barrick, M. R., & Strauss, J. P.

citation count

  • 259

complete list of authors

  • Mount, Michael K||Barrick, Murray R||Strauss, J Perkins

publication date

  • January 1, 1994 11:11 AM