Article: Latent classes of posttraumatic psychopat...

Personality-based latent classes of posttraumatic psychopathology: Personality disorders and the internalizing/externalizing model.

Prior research using the Brief Form of the Multidimensional Personality Questionnaire (MPQ–BF; Patrick, Curtin, & Tellegen, 2002) has shown evidence of 3 temperament-based subtypes—termed internalizing, externalizing, and simple PTSD—among individuals with symptoms of posttraumatic stress disorder. This study sought to replicate and extend research in this area by conducting a latent profile analysis of higher order temperament scales from the MPQ–BF using a new sample of 208 veterans with symptoms of PTSD. Results suggest that a 3-class solution reflecting internalizing, externalizing, and simple subtypes of posttraumatic psychopathology provided the best fit to the data.

Wolf, E. J., Miller, M. W., Harrington, K. M., & Reardon, A. (2012). Personality-based latent classes of posttraumatic psychopathology: Personality disorders and the internalizing/externalizing model. Journal of Abnormal Psychology, 121(1), 256–262. doi:10.1037/a0023237