1 Department of Psychology, Concordia University, Montreal, QC, Canada. Ashley.reynolds@mail.concordia.ca.
2 Department of Psychology, University of Buffalo, Buffalo, NY, USA.
3 Department of Psychology, Lakehead University, Ontario, Canada.
4 Thunder Bay Regional Health Sciences Centre, Ontario, Canada.
5 Thunder Bay Regional Health Research Institute, Ontario, Canada.
6 Northern Ontario School of Medicine University, Thunder Bay, Ontario, Canada.
7 Dilico Anishinabek Family Care, Fort William First Nation, Thunder Bay, Ontorio, Canada.
8 Department of Educational and Counselling Psychology, McGill University, Montreal, QC, Canada.
9 Department of Psychology, Concordia University, Montreal, QC, Canada. Roisin.OConnor@Concordia.ca.

Negative affect (depression/anxiety) and alcohol use among Indigenous youth in Canada remain a concern for many communities. Disparate rates of these struggles are understood to be a potential outcome of colonization and subsequent intergenerational trauma experienced by individuals, families, and communities. Using a longitudinal design, we examined change in alcohol use and negative affect, and reciprocal associations, among a group of Indigenous adolescents. Indigenous youth (N = 117; 50%...