The Construct Validity of the Dutch Personality Inventory for DSM-5 Personality Disorders (PID-5) in a Clinical Sample

• Published in: Assessment (Odessa, Fla.) Fla.), 2016-02, Vol.23 (1), p.42-51
• Main Authors: Bastiaens, Tim, Claes, Laurence, Smits, Dirk, De Clercq, Barbara, De Fruyt, Filip, Rossi, Gina, Vanwalleghem, Dominique, Vermote, Rudi, Lowyck, Benedicte, Claes, Stephan, De Hert, Marc
• Format: Article
• Language: English
• Subjects: Humans; Netherlands; Personality Disorders - psychology; Personality Inventory - standards; Reproducibility of Results; Software
• ISSN: 1073-1911; 1552-3489
• DOI: 10.1177/1073191115575069

The factor structure and the convergent validity of the Personality Inventory for DSM-5 (PID-5), a self-report questionnaire designed to measure personality pathology as advocated in the fifth edition, Section III of Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are already demonstrated in general population samples, but need replication in clinical samples. In 240 Flemish inpatients, we examined the factor structure of the PID-5 by means of exploratory structural equation modeling. Additionally, we investigated differences in PID-5 higher order domain scores according to gender, age and educational level, and explored convergent and discriminant validity by relating the PID-5 with the Dimensional Assessment of Personality Pathology—Basic Questionnaire and by comparing PID-5 scores of inpatients with and without a DSM-IV categorical personality disorder diagnosis. Our results confirmed the original five-factor structure of the PID-5. The reliability and the convergent and discriminant validity of the PID-5 proved to be adequate. Implications for future research are discussed.