LGBTQ+ advocacy and inclusive school policies are associated with self-worth among youth in gender-sexuality alliances over the school year.

Inclusive school policies and youth advocacy could promote well-being and positive development among youth of diverse sexual orientations and gender identities. Utilizing three waves of data over a 6-month period, we tested a three-level multilevel model on the extent to which youth's advocacy in gender-sexuality alliances (GSAs; school clubs affirming youth identifying as lesbian, gay, bisexual, transgender, questioning or with other expansive sexual orientations or gender identities [LGBTQ+]) and attending schools that more thoroughly implemented LGBTQ+ inclusive policies and practices were associated with youth's self-worth. Participants were 627 youth (87% LGBQ+ youth, 45% transgender or nonbinary youth, 48% youth of color, = 15.13) in 51 GSAs. Youth who reported greater involvement in advocacy over the 6-month period reported greater self-worth than others. There was also a contextual effect at the GSA level: Youth in GSAs whose members collectively reported greater advocacy reported even greater self-worth, beyond what was associated with a youth's own advocacy. Furthermore, GSA members in schools that more thoroughly implemented LGBTQ+ inclusive policies and practices reported greater self-worth over the study period. The findings highlight the importance of youth and school efforts to affirm the dignity and worth of LGBTQ+ young people. (PsycInfo Database Record (c) 2025 APA, all rights reserved).