The NIAAA Alcohol Use Disorders and Associated Disabilities Interview Schedule-DSM-IV version (Grant et al., 2001) was designed to generate DSM-IV diagnoses of cannabis abuse and dependence. Following DSM-IV, cannabis abuse criteria included recurrent use resulting in one of the following during the 12 months prior to the interview: (1) use in hazardous situations; (2) failure to fulfill major role obligations at work/school/home; (3) legal problems related to use; or (4) social or interpersonal problems. DSM-IV dependence criteria included: (1) tolerance; (2) using larger amounts or for longer periods than intended; (3) persistent desire or unsuccessful efforts to cut down or control use; (4) a great deal of time spent in activities to obtain cannabis, or to recover from its effects; (5) giving up or reducing important social, occupational or recreational activities in favor of use; and (6) continued use despite knowledge of a physical of psychological problem caused or exacerbated by cannabis use. All abuse and dependence criteria were measured and coded as dichotomous (i.e., yes/no) variables.
