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Factor structure and concurrent validity of the Posttraumatic Growth Inventory–Short Form among veterans from the Iraq War

Authors

  • Matthew E. Kaler,

    Corresponding author
    1. Minneapolis VA Health Care System
    Current affiliation:
    1. Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System
    • Minneapolis VA Health Care System, One Veterans Drive (116A-9), Minneapolis, MN 55417
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  • Christopher R. Erbes,

    1. Minneapolis VA Health Care System and University of Minnesota Medical School
    Current affiliation:
    1. Mental Health, Minneapolis VA Health Care System and Department of Psychiatry, University of Minnesota Medical School
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  • Richard G. Tedeschi,

    1. University of North Carolina at Charlotte
    Current affiliation:
    1. Department of Psychology, University of North Carolina at Charlotte
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  • Paul A. Arbisi,

    1. Minneapolis VA Health Care System and University of Minnesota Medical School
    Current affiliation:
    1. Mental Health, Minneapolis VA Health Care System and Department of Psychiatry, University of Minnesota Medical School
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  • Melissa A. Polusny

    1. Minneapolis VA Health Care System and University of Minnesota Medical School
    Current affiliation:
    1. Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System and Department of Psychiatry, University of Minnesota Medical School
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  • This research was supported by a grant from the Department of Defense Congressionally Directed Medical Research Program (CDMRP) (W81XWH-07-2-003). The authors would like to acknowledge Major Cora Courage, PsyD, for her assistance with subject recruitment for this project. We would also like to thank numerous research assistants who have volunteered their assistance on this study. This material is the result of work supported with resources and the use of facilities at the Minneapolis VA Health Care System, Minneapolis, MN.

    The views expressed in this article are those of the authors and do not reflect the official policy or position of the Department of Veterans Affairs, Department of the Army, or Department of Defense. None of the authors report current or future competing interests or disclosures of financial interests and relationships.

Abstract

The Posttraumatic Growth Inventory is a frequently used self-report measure of posttraumatic growth. It was adapted recently to a short form with preliminary evidence in support of its psychometric properties. The current survey study replicates evidence for the short form's factor structure, internal consistency reliability, and concurrent validity among a sample of 327 National Guard soldiers deployed in support of military operations in Iraq, a population distinct from the original scale-development sample of undergraduates. Findings provide evidence for satisfactory reliability, replicable factor structure (i.e., the same 5-factor structure as the original measure), and support for concurrent validity (i.e., relations with theoretically related constructs). Further research should address validity of the scale among more ethnically and racially heterogeneous samples.

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