A hierarchical model of normal and abnormal personality up to seven factors

Despite general support for dimensional models of personality disorder, it is currently unclear which, and how many, dimensions a taxonomy of this kind should include. In an attempt to obtain an empirically-based, comprehensive, and usable structure of personality, three instruments – The Temperament and Character Inventory-Revised (TCI-R), the Personality Diagnostic Questionnaire-4 + (PDQ-4 + ), and the Dimensional Assessment of Personality Pathology-Basic Questionnaire (DAPP-BQ) – were administered to 960 outpatients and their scales factor-analyzed following a bass ackwards approach. The resulting hierarchical structure was interpretable and replicable across gender and methods up to seven factors. This structure highlights coincidences among current dimensional models and clarifies their apparent divergences, and thus helps to delineate the unified taxonomy of normal and abnormal personality that the field requires.