The Relationship between the Structures of Personality Inventory for the Diagnostic and Statistical Manual, Fifth Edition (PID-5) and Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF).

Objective: The Personality Inventory for the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (PID-5), is a trait-based measure of pathological personality designed to assess Criterion B of an alternative diagnostic system for personality disorders (PDs). In this study, we aimed to evaluate the relations among the PID-5 and the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF); a commonly used self-report instrument with a hierarchical structure. Method : We examined the joint structure of the PID-5 scales along with levels of the MMPI-2-RF hierarchy to understand whether conceptually expected structures tend to be loaded with each other. Data were collected from 536 participants from the general population of Iran. Results: Findings of Pearson's correlation analyses exhibited the generally expected patterns between the two mentioned measures on most scales, with some divergences. Similarly, although applying a set of joint exploratory structural equation modeling (ESEM) exhibited some factor loadings for PID-5 facets within the hierarchical framework of MMPI-2-RF scales that were different to what was theoretically expected, both measures were generally loaded in a conceptually expected way, indicating that they have a similar dimensional structure. Conclusion: Our findings provide support for adequate convergence of maladaptive personality traits and psychopathology structures, as well as for utilizing MMPI-2-RF to measure personality psychopathology from a dimensional perspective. The implications of these results are discussed by the authors.

Assessing DSM-5 Section II Personality Disorders Using the MMPI-2-RF in an Iranian Community Sample.

The aim of the current study was to examine the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF; Ben-Porath & Tellegen, 2008) scales in assessing Diagnostic and Statistical Manual of Mental Disorders-Fifth edition (DSM-5) Section II Personality Disorder (PD) symptoms. For this purpose, we first tested the cross-cultural factorial and criterion validity of MMPI-2-RF scales. We used a sample of 536 (327 women and 209 men) community individuals in Tehran, Iran. DSM-5 Section II PD criterion counts were assessed using the Structured Clinical Interview for DSM-5-Screening Personality Questionnaire. Exploratory structural equation modelling analyses revealed that the models reported by Ben-Porath and Tellegen generally fitted the data well. Criterion validity of the MMPI-2-RF scales as well as MMPI-2-RF PDs spectra scales were analyzed with respect to their correlations with DSM-5 Section II PDs, indicating results generally consistent with expectations. Results based on Poisson or Negative binomial regression models indicated that a set of MMPI-2-RF scale hypotheses were supported, with several exceptions that are discussed in detail. These findings have implications for applicability of the MMPI-2-RF across Iranian population.