Before AI-SUPERPFP began, research approvals were obtained from all participating tribes and from the Colorado Multiple Institutional Review Board. After providing a complete description of the study, written informed consent was obtained from all adult participants; for minors, parental/guardian consent was acquired prior to adolescent assent. Participants were interviewed individually by tribal members who received intensive training on data collection methods; interviews were computer-assisted, with responses entered directly into laptops. Extensive quality control procedures verified that location, recruitment, and interview procedures were conducted in a standardized, reliable manner.