DSM-5 section II personality disorders through the lens of PID-5 and MMPI-2-RF: a study of an iranian sample

The current study was designed to assess the Section II personality disorders (PDs) of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) using two common self-report personality assessment measures, the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF) and Personality Inventory for DSM-5 (PID-5). The sample comprised 320 Iranian outpatients who completed the Structured Clinical Interview for DSM-5-Screening Personality Questionnaire (SCID-5-SPQ), PID-5, and MMPI-2-RF. To determine how the DSM-5 Section II PDs were associated with these two measures, we conducted Spearman correlations, a series of count regression models, and exploratory structural equation modelling (ESEM) analyses. The regression models revealed that although the DSM-5 Section II PDs associated with the hierarchical model of the MMPI-2-RF, there were also a few unexpected findings, reflecting some variations on personality psychopathology across this clinical sample. Likewise, the joint structure of SCID-5-SPQ along with PID-5 facets and MMPI-2-RF scales revealed an interpretable pattern of factor loadings that generally corresponded to anticipated theoretical models. The authors discuss the implications of these findings.