A multi-sample confirmatory factor analysis of PTSD symptoms: What exactly is wrong with the DSM-IV structure?

► The symptom structure of posttraumatic stress disorder (PTSD) is controversial. ► The difference between the Numbing and Dysphoria models has been mischaracterized. ► Non-clinical factors may underlie the seeming misfit of the DSM-IV model of PTSD. ► Proposed revisions to the forthcoming DSM-5 may be misguided.