The intention of the “heard of” substance use section is to ensure the study does not introduce the youth to new substances and to only assess influences on use, substance use patterns, or consequences in youth who are already familiar with each drug category. We ask whether youth have “heard of” alcohol (“alcohol, such as beer, wine or liquor”), cannabis and cannabinoids (“marijuana, weed, pot, blunts, dabs, marijuana drinks or food with marijuana; fake or synthetic marijuana such as K2 or spice”), nicotine (“tobacco products, such as cigarettes, smokeless tobacco, cigars, hookah, pipes, electronic or e-cigarettes), caffeine (‘caffeine, which is found in coffee, tea, energy drinks, and some soda’), inhalants (“sniffing liquids, sprays or other products to get high”), and prescription medications (“taking pills, liquids, or medications to get high in a way that your doctor or parents did not direct you to use them” to assess stimulant, sedative/anxiolytic, and opiate prescription medications and over-the-counter cough or cold medicines). This section ends with a broad substance use question to capture any other non-queried drug categories (“Have you heard of people
