Examining the DSM-5 latent structures of posttraumatic stress disorder in a national sample of student veterans |
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| Institution: | 1. National Center for Veteran Studies, 260 South Campus Dr. Suite 3525, Salt Lake City, UT 84112, United States;2. College of Social Work at the University of Utah, 395 South 1500 East #111, Salt Lake City, UT 84112, United States;3. Department of Psychology at the University of Utah, 380 South 1530 East, Salt Lake City, UT 84112, United States;1. ARQ Centrum’45, Diemen/Oegstgeest, the Netherlands;2. Department of Clinical Psychology & Experimental Psychopathology, University of Groningen, Groningen, the Netherlands;3. Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands;4. Department for Epidemiology, University Medical Center Groningen, University of Groningen, the Netherlands;1. Department of Psychological and Brain Sciences, Boston University, 900 Commonwealth Ave. #2, Boston, MA, 02215, United States;2. Department of Psychology, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, United States;1. Department of Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, 671 William Avenue, Winnipeg, Manitoba, R3E 0Z2, Canada;2. Department of Psychology, University of Manitoba, 190 Dysart Road, Winnipeg, Manitoba, R3T 2N2, Canada;3. Department of Clinical Health Psychology, University of Manitoba, 771 Bannatyne Avenue, Winnipeg, Manitoba, R3E 3N4, Canada;4. Department of Psychiatry, University of Manitoba, 771 Bannatyne Avenue, Winnipeg, Manitoba, R3E 3N4, Canada;5. Department of Psychology, University of North Texas, 1155 Union Circle, Denton, TX, 76203, United States;6. Department of Psychology, University of Rhode Island, 142 Flagg Road, Kingston, RI, 02881, United States |
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| Abstract: | To date, no studies have examined the latent structures of posttraumatic stress disorder (PTSD) within a sample of student veterans. To examine these constructs in a student veteran sample (n = 297), confirmatory factor analysis (CFA) was conducted on six different models of PTSD, including a one-factor model, based on the 20 symptoms found in the DSM-5; PTSD was assessed using the PCL-5. Global fit statistics suggest that fit across all models, including the 1-factor model, were good RMSEAs(0.054−0.056); CFIs(0.928−0.940); SRMRs(0.043−0.045)], and the AIC was lowest for the seven-factor hybrid model. Statistical tests and fit guidelines for nested models suggest there is no quantitative advantage of a five, six, or seven-factor model over the existing DSM-5 four-factor model. Given the high percentage of student veterans that screened positive for a probable PTSD diagnosis (53 %) in this study compared to non-student veterans (11–20 %) and the general student population (11–15 %) found in other studies, further research is needed to assess the clinical utility of these symptoms and model structures. |
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| Keywords: | “Student veterans” PTSD Confirmatory factor analysis DSM-5 PCL-5 |
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