The relationship between identity-based social support, victimization, and mental health among LGBTQ+ youth.

=0.5 years; 87% trans), allowing us to assess these relationships longitudinally, as well. Consistent with our pre-registered hypotheses, cross-sectional analyses showed identity-based social support was associated with better mental health and identity-based victimization was associated with worse mental health. Unexpectedly, we did not observe a buffering effect: having identity-based social support did not reduce the association between identity-based victimization and negative mental health. We found mixed evidence about the relationships between changes in identity-based social support and victimization and changes in mental health. Overall, our findings are consistent with prior research in suggesting that identity-related support and identity-related victimization are important for LGBTQ+ youth's well-being.