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Motivational interviewing has been proven to increase the motivation of individuals who need to change substance abuse and other health behaviors. This article explores a descriptive model of change and describes how motivational interviewing fits in this larger context. The theoretical assumptions of motivational interviewing are described, including controversies surrounding denial and resistance in ambivalent individuals. Specific and concrete strategies are provided for occupational medicine settings and various combinations of motivational interviewing with feedback and other treatments are described.

The Campuswide Alcohol and Drug Abuse Prevention Program (CADAPP) was implemented and evaluated over a 1.5-year span at the University of New Mexico (UNM). Drawing on self-regulation theory as a basis for understanding motivation for change, the program was designed to increase risk perceptions and thereby reduce the use of alcohol and other drugs among university students. The program was evaluated from 1988 to 1989 through repeated anonymous random sample surveys of all enrolled students on the UNM campus and on a similar control campus not implementing new prevention efforts during the same period. As predicted, relative to the control campus, students on the CADAPP campus after the program showed significantly higher perceived risks from substance use and significantly reduced levels of alcohol and marijuana use. These findings provide encouraging evidence for this theory-based approach to primary and secondary prevention.

This study examined substance use patterns and consequences in college students over a three year period. Students were surveyed at a large, southwestern university, allowing for a diverse sample that included a large percentage of minority respondents. Students (total N = 2710) in 1994, 1995, and 1996 responded anonymously to the Core Survey of Alcohol and Drugs. Over 80% of students at each time point were current drinkers, and over one-third at each time period reported binge drinking. Binge drinking was associated with greater weekly drinking and with a range of negative consequences. Underage drinking was prevalent at all time points, and underage drinkers reported drinking in a range of on- and off-campus situations. Hispanic students reported higher rates of binge drinking than other ethnic groups. Nonwhite, non-Hispanic students reported greater rates of abstinence than other students. Although other drug use was much less prevalent, drug use in combination with drinking was associated with more problematic patterns of drinking and more negative consequences. Results are discussed in terms of implications for interventions with college students.