Psychometric properties of an abbreviated instrument of the five-factor model.

Brief measures of the five-factor model (FFM) have been developed but none include an assessment of facets within each domain. The purpose of this study was to examine the validity of a simple, one-page, facet-level description of the FFM. Five data collections were completed to assess the reliability and the convergent and discriminant validity of the rating form with other measures of the FFM and to replicate correlations with measures of maladaptive personality functioning that have been obtained with more extensive measures. Results appeared to support the validity of the FFM rating form (FFMRF) because it obtained relatively good internal consistency, convergent validity, and discriminant validity. In addition, self-descriptions of persons in terms of the FFMRF related to maladaptive personality traits in a manner that was consistent with theoretical expectations. Negative findings and limitations of the rating form also are discussed.