BACKGROUND: Following natural disasters, early helping behavior often dissipates despite remaining disaster-related suffering and affective vulnerability in the community. Interventions that have successfully increased helping behaviors have included components of motivational interviewing (MI) and mindful compassion
however, this research is limited by laboratory-based settings and lengthy training sessions. Brief, portable, and efficient intervention is needed to increase accessibility to large groups simultaneously. METHOD: The current study piloted a brief, online, self-administered MI and mindful compassion intervention administered 4-10 weeks post-Hurricane Harvey examining if it would sustain helping behaviors over the ensuing year. The study also examined potential moderators of the relationship between compassion for others and internalizing symptoms, and whether helping behaviors predicted post-traumatic stress symptoms. RESULTS: The intervention group sustained the use of helping behaviors more than an active control group after 9-12 months. Also, compassion satisfaction and burnout moderated the relationship between compassion for others and post-traumatic stress and depressive symptoms at follow-up. CONCLUSIONS: Results suggest a potentially useful model of how an efficiently distributed intervention might sustain helping behaviors after a natural disaster and provide insight into possible longitudinal risk and protective factors for post-traumatic stress and depressive symptoms among helping volunteers.