Master of Science
Meghan E. McDevitt-Murphy
James G. Murphy
Sagrestano M. Lynda
After combat, social support may reduce the severity of posttraumatic stress disorder (PTSD) and alcohol consumption. This study tested the buffering and direct effect theories of social support to determine if combat exposure moderated the relationship between unit cohesion and PTSD and the relationship between postdeployment social support and PTSD. The impact of combat exposure, unit cohesion, and postdeployment social support on alcohol consumption was investigated. Seventy hazardous-drinking veterans (63% Caucasian, 90% men) completed structured interviews and self-report measures. Combat exposure moderated the relationship between unit cohesion and PTSD. Unit cohesion was related to reduced PTSD severity for lower combat exposure; there was no relationship between unit cohesion and PTSD for higher combat exposure. Higher postdeployment social support was related to less severe PTSD. Combat exposure, unit cohesion, and postdeployment social support had no effect on alcohol consumption. Although neither theory was supported, results highlight the link between social support and PTSD.
Dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.
Avery, Megan Lee, "The Influence of Combat Exposure, Unit Cohesion, and Postdeployment Social Support on Posttraumatic Stress Disorder and Alcohol Consumption in Veterans" (2011). Electronic Theses and Dissertations. 372.