This 16-item instrument was modified the Perceived Harm of Substance Use survey, which is based on items from the MTF study and correlated with adolescent substance use (Johnston et al., 2015; Johnston et al., 1988) and modified for the ABCD Study to include additional low-level use items and additional items measuring cannabis, e-cigarettes, smokeless tobacco, inhalants, and prescription drugs (most commonly used substances in youth (Johnston et al., 2017)). For each item, participants are asked the initial stem question, “The next questions ask for YOUR opinions on the effects of using certain drugs and other substances. How much do you think people risk harming themselves (physically or in other ways) if they…”. The instrument covers the same substances and dosing as outlined above (Peer Tolerance of Substance Use). Youth are administered individual items if they have heard of the substance.
