Acknowledgements: The first three authors are members of the "Centre de recherche interdisciplinaire sur les problèmes conjugaux et les agressions sexuelles" (CRIPCAS) and the "Équipe violence sexuelle et santé" (ÉVISSA), both research groups on sexual abuse. This research was supported by a grant from the Université du Québec à Chicoutimi. We thank school directors, teachers and students for their generous collaboration in this project, as well as research assistants, in particular Erika Bacon, Results reveal that mindfulness acted as a mediator of post-traumatic symptoms, as CSA was associated with lower levels of mindfulness, which in turn were associated with more post-traumatic symptoms. On the other hand, mindfulness only acted as a moderator of CSA for anger and anxiety, but not in the expected direction. Further investigation is needed to shed light on the moderator role of mindfulness in sexually abused youth.Running head: SEXUAL ABUSE OR ASSAULT AND MINDFULNESS 3