The mediating role of coping self-efficacy on social support and PTSD symptom severity among injury survivors.

BACKGROUND: Social support confers a protective effect against elevated PTSD symptomatology following injury. However, little is known about the mechanisms through which social support conveys this protective mental health effect in injury survivors. Coping self-efficacy is linked to both social support and PTSD symptomatology but has not been examined. OBJECTIVE: To test coping self-efficacy as a mechanism for the relationship between social support and PTSD symptom severity among injury survivors. METHOD AND DESIGN: Participants consisted of 61 injury survivors (62.3% male, 72.1% White) admitted to a Level-1 Trauma Center. Social support was assessed at 2-weeks post-injury; coping self-efficacy at 6-weeks post-injury; and PTSD symptom severity at 3-months post-injury. RESULTS: A statistically significant indirect effect was found for the social support - coping self-efficacy - PTSD symptomatology pathway, providing evidence of mediation even after controlling for age, sex, race, and education (B = -0.51, SE = 0.18, CI = -0.92, -0.20). CONCLUSIONS: Social support may exert an effect on PTSD symptom severity post-injury through its connection with coping self-efficacy. Coping self-efficacy represents an important intervention target following injury for those survivors with lower social support who are at risk for elevated PTSD symptom severity levels.

Trauma Coping Self-Efficacy: A Context-Specific Self-Efficacy Measure for Traumatic Stress.

OBJECTIVE: The psychometric properties of a Trauma Coping Self-Efficacy (CSE-T) scale that assesses general trauma-related coping self-efficacy perceptions were assessed. METHOD: Measurement equivalence was assessed using several different samples: hospitalized trauma patients (n1 = 74, n2 = 69, n3 = 60), 3 samples of disaster survivors (n1 = 273, n2 = 227, n3 = 138), and trauma-exposed college students (N = 242). This is the first multisample evaluation of the psychometric properties for a general trauma-related CSE measure. RESULTS: Results showed that a brief and parsimonious 9-item version of the CSE performed well across the samples with a robust factor structure; factor structure and factor loadings were similar across study samples. DISCUSSION: The 9-item scale CSE-T demonstrated measurement equivalence across samples indicating that the underlying concept of general posttraumatic CSE is organized in a similar manner in the different trauma-exposed groups. These results offer strong support for cross-event construct validity of the CSE-T scale. Associations of the CSE-T with important expected covariates showed significant evidence for convergent validity. Finally, discriminant validity was also supported. Replication of the factor structure, internal reliability, and other evidence for construct validity is a critical next step for future research. (PsycINFO Database Record