The NYTS is a cross-sectional, school-based electronic survey that uses a stratified, three-stage, cluster-sampling design (across counties, schools, and classrooms) to generate a nationally representative sample of U.S. middle school students (grades 6 through 8) and high school students (grades 9 through 12). Carried out between January 16th and March 16th, the most recent school-based … Continue reading The US’s Concern About Disposable E-Cigarette Use Among Youth