Doctor of Psychology (Psy.D.), Xavier University, 2019, Psychology
Social support from a military unit has been found to moderate the relationship of trauma exposure with symptoms of PTSD and depression (Armistead-Jehle, Johnston, Wade, & Ecklund, 2011; Brailey, Vasterling, Proctor, Constans, & Friedman, 2007). The present study examined whether among cross-cultural missionaries, support from a work team would likewise moderate the relationship of lifetime traumatic load with PTSD symptoms, depression symptoms, and functional impairment. Participants in this study were exposed to a high number of traumatic experiences: 76.8% were exposed to one or more traumatic event compared to 51.2% of women and 60.7% of men in American, and 29% exposed to three or more traumatic events compared to 19.2% of men and 11.4% of women in American (Kessler, 2000). Traumatic load had a positive correlation with the severity of PTSD and depression symptoms, and team support had a negative correlation with the severity of symptoms and functional impairment. However, multiple regression indicated that team support did not significantly moderate the relationship of traumatic load with PTSD symptoms, depression symptoms, or functional impairment. Among participants exposed to three or more traumatic events, low levels of social support accurately predicted scores indicative of probable PTSD or major depressive disorder, with functional impairment. Participants indicated how their team promoted posttraumatic growth following trauma exposure: 42.6% indicated that their team promoted growth in better understanding spiritual matters, and 40.7% indicated that their team promoted growth in knowing that they can handle difficulties. Recommendations for future research are to examine training, practices, and interventions which effectively increase social support among missionaries and humanitarian aid workers living in areas at high risk of trauma exposure.
Committee: Janet R. Schultz Ph.D. (Committee Chair)
Subjects: Behavioral Psychology; Behavioral Sciences; Behaviorial Sciences; Mental Health; Occupational Psychology; Organizational Behavior; Psychology; Religion