Electronic Theses and Dissertations





Document Type


Degree Name

Master of Science



Committee Member

Meghan McDevitt-Murphy

Committee Member

Melloni Cook

Committee Member

James P Whelan


An important change in the conceptualization of posttraumatic stress disorder (PTSD) has been the shift from a three-factor model used in the DSM-IV-TR to the current four-factor model used in DSM-5. Early research initially supported the three-factor model, but most recent data suggest a four-factor model provides the best fit. Still other research has examined evidence for a five-factor model that would include depression sequelae. By way of a confirmatory factor analysis, we demonstrate the reliability of DSM-5 PTSD criteria clustering in a sample of 124 OEF/OIF/OND Veterans treated at the VAMC (49% white, 89% men) and a sample of 737 college students (48% white, 78% women). All participants were trauma-exposed, andcompleted the PTSD Checklist for DSM-5. The current study shows both samples best support a five-factor model over the two four factor models considered for the DSM-5, though none provided better than moderate fit. Findings will be used to judge the reliability of the new DSM-5 criteria of PTSD and to accurately and consistently categorize PTSD symptomatology.


Data is provided by the student.

Library Comment

Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.