Validation of the Purdue Post-Traumatic Stress Scale on a sample of Vietnam veterans.


Journal Article

The Purdue Post-traumatic Stress Disorder Scale is a 15-item self-report instrument based on the DSM-III diagnostic criteria for post-traumatic stress disorder. This scale is a quick, easily administered, measure of psychological reactions to a traumatic event. The goal of the present report is to validate this instrument for use as a measure of long-lasting combat stress reactions of American Vietnam veterans. The PPS demonstrated a high degree of internal consistency with a Cronbach's coefficient alpha of 0.94. The PPS demonstrated construct validity through significant correlations with other self-report measures of combat experience and residual psychological distress, and through a factor analysis yielding three factors, labeled as arousal, avoidance, and the global perception of distress. Results support further use of the Purdue Post-traumatic Stress Scale as a research instrument for assessing the long-term impact of a traumatic event.

Full Text

Duke Authors

Cited Authors

  • Hendrix, CC; Anelli, LM; Gibbs, JP; Fournier, DG

Published Date

  • April 1, 1994

Published In

Volume / Issue

  • 7 / 2

Start / End Page

  • 311 - 318

PubMed ID

  • 8012750

Pubmed Central ID

  • 8012750

Electronic International Standard Serial Number (EISSN)

  • 1573-6598

International Standard Serial Number (ISSN)

  • 0894-9867

Digital Object Identifier (DOI)

  • 10.1007/bf02102951


  • eng