How are the national, state, and district YRBS data different?
National, state, territory, tribal government, and district YRBS data come from separate scientific samples of schools and students. National YRBS data are not the aggregate of the state YRBS data. State, territory, tribal government, and district YRBS data are not subsets of the National YRBS data set. National, state, territory, tribal government, and district YRBSs all follow the same survey methodology and use the same core questionnaire.