Objective: The purpose of this study was to examine distress tolerance as a moderator of the relationship between emotional clarity and deliberate self-harm (DSH) in a diverse sample of trauma-exposed adolescents in acute psychiatric care at high risk of suicidal behavior. It was hypothesized that distress tolerance would emerge as a significant moderator, such that the association between emotional clarity and DSH would be significant among youth with high, but not low, distress tolerance. Method: Participants (N = 50; 52.0% female; M = 15.1 years, SD = 0.51; 44% White) completed measures of emotion dysregulation, DSH, history of suicide attempts, as well as a behavioral measure of distress tolerance. Results: Controlling for history of suicide attempts, results revealed a significant interaction between distress tolerance and emotional clarity in relation to DSH. Specifically, emotional clarity difficulties were related to DSH at high, but not low, levels of distress tolerance. Conclusions: Findings suggest that DSH among trauma-exposed youth with high rates of past suicide attempts is most likely when low emotion clarity is coupled with a high tolerance for emotional distress. Given that DSH significantly increases risk for suicide among youth with psychiatric needs, assessment of emotional clarity and distress tolerance deficits is apt to be warranted to facilitate identification of these youth for targeted intervention.
