The first nine of the ASQ’s 15 items query effects of alcohol often associated with lighter drinking. For each of these items, respondents are asked to indicate whether they have ever experienced the effect as a result of drinking alcohol, and if so, to estimate the minimum number of drinks they need to consume in order to feel the effect. The remaining items, assessing effects most associated with heavier drinking, are structured similarly, except that respondents are asked to estimate the maximum number of drinks they can consume without experiencing the effect.2