Activism around science, technology, engineering, and mathematics (STEM) is a critical task to promote social justice and to develop sustainable and effective solutions to global problems (e.g., climate change) in contemporary society. The present study examines relationships between adolescents' perceptions of gender and ethnic classroom inclusivity, outcome expectancies, utility values, and activism orientation in STEM, grounded in the situated expectancy-value theory. Participants were 699 adolescents (50.2% boys, 47.8% White
M