The purpose of this study was to examine and compare individuals that had survived a single incidence trauma, the Luby's massacre in Killeen, Texas. Participants answered questions regarding various facets of social support following the trauma, and were also screened for a diagnosis of PTSD. Participants' level of symptoms, specifically depression, anxiety, and phobic anxiety was measured over time with the SCL-90-R. The results of this study indicate that, while women initially experience a higher level of depression and phobic anxiety, there is no gender difference in rate of symptom change over time. This study also found that women were significantly higher than men on desirability, utilization and usefulness of social support. Of the target symptoms, however, only depression correlated with any facet of social support, specifically, desirability. Finally, this study questioned whether individuals would share more similarities with others based on gender or diagnosis. It is suggested by the current data that diagnosis is the better indicator of similarity.

Little empirical research has been done to examine the effects that working with traumatized individuals has had on their therapists. It is known that mental health professionals often do suffer ill effects, especially symptoms of secondary traumatic stress disorder. The present investigation tested predictors of secondary traumatic stress disorder in the therapists who provided services for the Oklahoma City bombing. Predictors were therapist social network involvement, years of counseling experience, and amount of self-reported empathy experienced from others. Indicators of secondary traumatic stress were the Frederick Reaction Index-A, the Compassion Fatigue Self-test for Helpers, and the SCL-90R. Hypotheses were tested using a series of hierarchical multiple regressions. Results demonstrated no significance for years of experience or social network, but perceived empathy accounted for 11% of the variance on the SCL-90 and the Compassion Fatigue Self-test for Psychotherapists with social network and years of experience controlled.

This study predicted that individuals diagnosed as having higher levels of stress, based upon DSM-III-R, Axis IV ratings, would also be diagnosed as having more severe forms of mental illness. Conversely, it predicted that individuals with higher premorbid health ratings, according to DSM-III-R, Axis V, would be diagnosed as having less severe forms of mental illness. Highly significant correlations were found between stress ratings and severity of disorder. Significant inverse relationships were also found between Axis V ratings and disorder severity. Additionally, several other demographic variables were significantly correlated with severity of disorder.

Individual differences of cognitive organization and content were investigated as they relate to adaptation to remote, recent, and immediate life stress. Outside the field of stress, prior researchers have implicated cognitive organization with adjustment and cognitive content with specific psychopathology. As for behavioral adaptation to life stress, cognitive organization was viewed as a major factor in emotional vulnerability and adjustment, and cognitive content as a major factor in the mood disturbance of depression. Behavioral adaptation was defined in terms of current emotional vulnerability, adjustment and negative changes in the immediate (last six months), recent (over six months), and remote (over one year) past.