DSM-IV-TR Personality Disorders Dimensional Profiles - Beyond the Five Factor Model

Abstract

This paper investigated the incremental validity of the SPI facets over the FFM factors in the prediction of the 10 DSM-IV-TR personality disorders. The first study collated experts? ratings on how a prototypic person with a specific personality disorder will display each of the 10 SPI facets. A unique SPI profile was identified for each personality disorder. The second study made use of various questionnaires on undergraduate participants and their informants in two separate sessions. Multiple regression analysis results for the incremental validity of the SPI were promising across different questionnaires for most of personality disorders and quite promising across sessions for the Cluster B personality disorders. Implications to the diagnosis of personality disorders are discussed.