Examining the reliability and validity of the Five-Factor Model Score Sheet
Pryor, Lauren Rachel
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The current study extended research in the assessment of the Five-Factor Model (FFM) by examining the reliability and validity of the Five-Factor Model Score Sheet (FFMSS; Widiger & Spitzer, 2002), a single-item clinician rating form of the 30 facets of the FFM. Participants included 130 outpatients who were rated by clinicians using the FFMSS. Results revealed that the factor structure of the FFMSS is consistent with previous research examining alternative measures of the FFM. Furthermore, patients were rated with reasonable reliability following minimal training and FFMSS ratings provided personality data convergent with other self-report measures of personality and clinician ratings of personality disorders from the Fourth Edition of the Diagnostic and Statistical Manual for Mental Disorders (American Psychological Association, 1994). The ratings also demonstrated clinical utility in predicting concurrent and prospective impairment across a number of domains. Results provide initial support for the use of the FFMSS in clinical settings.