This questionnaire assesses marijuana use practices in college students. The 30 items (multiple choice or free response) are concerned with personal and demographic data, marijuana smoking practices, use history, effects from smoking marijuana, present attitude toward the substance, and use of other drugs. The Questionnaire is untimed and self-administering. About five minutes is required. (See TM 001 118 for item response data and detailed findings including results involving correlates from 12 other instruments). (DG)