This project aims to integrate sexual minority identity development research with tobacco use over a lifespan. It seeks to enhance culturally relevant models explaining sexual minority tobacco disparities. Dr. Hinds’primary training goals include: integrate the fields of sexual minority identity development and tobacco use across the lifespan, gain expertise in psychometrics and measure development, and complex data analysis for modeling sexual minority tobacco use. The mentoring team will guide her through mixed methods research, novel survey instrument development, and the creation of a comprehensive conceptual model of sexual minority tobacco use, addressing identity and stress factors. This will underpin future initiatives to reduce sexual minority tobacco use and health disparities.