Abstract
This study assessed the concurrent validity of the Psychodynamic Diagnostic Manual (PDM-2, APO 2017) personality syndromes (P Axis) formulation by factor analyzing the countertransference expectation ratings of 412 clinicians of the PDM-2 personality syndromes. This study compared the resulting factor structures of those ratings to some of the leading taxonomies of personality disorders i.e., DSM-5’s three personality clusters; levels of personality organization model of Kernberg (1984); internalizing, externalizing, and borderline-dysregulated personality dimensions of the Shedler-Westen Assessment Procedure-II (Westen et al. in American Journal of Psychiatry, 169(3), 273–284, 2012), and the DSM-5’s alternative model (American Psychiatric Association 2013) which uses the Personality Psychopathology Five disorder trait specifiers: negative affectivity, detachment, antagonism, disinhibition, and psychoticism. The results found good concurrent validity for the new PDM-2, P Axis with these leading diagnostic taxonomies. However, it appears that understanding the complexity of personality is not a matter of adding up personality traits as suggested by the DSM-5 Alternative Model.
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