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East Tennessee State University

Explaining Combat Related Posttraumatic Stress Disorder: An Integrated Mental Illness and Military Process Model

Abstract

dc:description.abstract

<p>The purpose of the current study was to examine a process model of combat-related and mental-illness related processes that explain increased likelihood of Posttraumatic Stress Disorder (PTSD). This dissertation proposed the development of PTSD may occur due to cultural, social, and self-related pathways associated with veterans’ dual encounters with combat (i.e., severity) and mental illness symptoms. Participants were 195 military veterans recruited from multiple sites and strategies to maximize sample size and representation. Participants were asked to complete several self-administered assessment inventories, including: the Posttraumatic Stress Disorder Checklist-Military, the Trauma Symptom Checklist, the Combat Experiences scale, the Self-Stigma of Mental Illness Scale, an adapted version of the Iraq War Attitude Scale, a perceptions scale, an adapted version of the Likelihood of Disclosure Scale, the Unit Support Scale, the Post-Deployment Support Scale, the UCLA Loneliness Scale (Version 3), as well as covariates that included demographics and details of military service (e.g., deployment information). Overall, results revealed that the impaired social support indicator of social isolation was linked to PTSD, whereas impaired unit support and impaired postdeployment support were not predictive of PTSD. Results also revealed that it is the cultural stereotypes and stigma associated with military and war but not of mental illness that plays a role in social isolation and subsequently PTSD. Overall, evidence supports the combined explanations of combat-related processes and mental illness processes in understanding likelihood of PTSD.</p>

Degree

thesis:*
Name thesis:degree_name
PhD (Doctor of Philosophy)
Level thesis:degree_level
Dissertation - unrestricted
Discipline thesis:degree_discipline
Psychology
Year dc:date.issued
2014

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Deitz, Mandi F

Subjects

dc:subject × 6

Rights

dc:rights
Statement dc:rights
  • Copyright by the authors.

Identifiers

dc:identifier.*
Repository record dc:identifier
https://dc.etsu.edu/etd/2318
OAI identifier oai:identifier
oai:dc.etsu.edu:etd-3376

Chain of custody

source
Harvested from
East Tennessee State University
Base URL
dc.etsu.edu/do/oai/
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Deitz, Mandi F. Explaining Combat Related Posttraumatic Stress Disorder: An Integrated Mental Illness and Military Process Model. Dissertation - unrestricted thesis, 2014. https://dc.etsu.edu/etd/2318