The participants were asked the following questions: “How harmful to your health do you think each of the following products are?”; “How addictive do you think each of the following products are?”; and “How socially acceptable among your peers do you think each of the following products are?” in reference to each of the following substances: cigarettes; cigar-like tobacco products (e.g., cigars, clove cigars, little cigars, cigarillos); smokeless tobacco (e.g., chew, snus, dissolvables); hookahs or waterpipes; electronic cigarettes; and marijuana. Response options were 1 = not at all to 7 = extremely. We calculated an overall favorability index of each of the tobacco products and marijuana. This was calculated by subtracting the perceived harm and the perceived addictiveness scores from 7 respectively, and adding it to the social acceptability score, for a higher favorability score to reflect lower perceived harm and addictiveness and higher perceived social acceptability.