This research aims to evaluate the safety of the intervention, the feasibility of the research methods (including the appropriateness of the relaxation training control condition), and to preliminarily estimate the immediate (one week) and long-term (one and three month) changes resulting from the DBT Brief Skills Intervention (DBT-BSI) relative to a relaxation training control on the primary outcomes of suicide ideation and emotion dysregulation as well as a number of secondary outcomes. These results will inform the design of a subsequent full-scale randomized controlled trial of the DBT-BSI.