Trait Self-Enhancement as a Buffer Against Potentially Traumatic Events: A Prospective Study

Longitudinal research has associated the disposition toward self-enhancing biases with better adjustment following potentially traumatic events (PTEs). However, self-enhancement was always measured in these studies after the PTE, thus confounding it with exposure. This study used a prospective design that tracked PTEs in college students over a 4-year period using an online checklist (n 69). Most participants experienced at least 1 PTE, and the mean number of PTEs was 4.40. Trait self-enhancement, measured at the beginning of the study and prior to the PTEs, was associated with reduced distress in both the first and fourth year of college. Participants with greater exposure to PTEs had greater distress in their fourth year; however, individuals high in self-enhancement were relatively unaffected by PTE exposure. High self-enhancement participants were also rated as better copers in anonymous ratings obtained from participants’ close friends. Overall, these results offer the first prospective evidence demonstrating that self-enhancement serves as a buffer against the potentially harmful effects of trauma.