Temporal Stability of DSM-5 Posttraumatic Stress Disorder Criteria in a Problem-drinking Sample

Overview

Journal Psychol Assess

Publisher American Psychological Association

Specialty Psychiatry

Date 2014 Jun 17

PMID 24932642

Citations 26

Authors

Terence M Keane

Amy Rubin

Mark Lachowicz

Deborah Brief

Justin L Enggasser

Monica Roy

John Hermos

Eric Helmuth

David Rosenbloom

Affiliations

Soon will be listed here.

Abstract

The 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) reformulated posttraumatic stress disorder (PTSD) based partially on research showing there were 4 main factors that underlie the symptoms of the disorder. The primary aim of this study was to examine the temporal stability of the DSM-5 factors as measured by the Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5; Weathers et al., 2010). Confirmatory factor analyses were conducted to examine the structure of DSM-5 PTSD, and temporal stability over 3 time points was examined to determine if the measure reflects a consistent construct over time. Our sample was 507 combat-exposed veterans of Iraq and Afghanistan who enrolled in an online intervention for problem drinking and combat-related stress (Brief et al., 2013). We administered the PCL-5 at baseline, 8-week postintervention, and 3-month follow-up assessments. The DSM-5 model provided an adequate fit to the data at baseline. Tests of equality of form and equality of factor loadings demonstrated stability of the factor structure over time, indicating temporal stability. This study confirmed the results of previous research supporting the DSM-5 model of PTSD symptoms (Elhai et al., 2012; Miller et al., 2013). This is the 1st study to demonstrate the temporal stability of the PCL-5, indicating its use in longitudinal studies measures the same construct over time.

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