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Research & Resources




Effects of a Motivational Interview on Underage Heavy Drinking and Harm

Researchers tested the mediating effects of a motivational interview’s (MI) efficacy in reducing underage drinking. Analyses of 167 young adult drinkers at a 6-week follow up suggested that MI was helpful in reducing heavy drinking days when participants reported increased motivation and self-efficacy, and a decreased amount of alcohol that they intended to drink in the future. However, MI’s efficacy for reducing alcohol consequences was only mediated through decreased perceived drinking norms. While increased cognitive dissonance about current drinking habits from MIs played a role in reducing heavy drinking days at the 3-month follow up, it did not affect alcohol consequences.

The study, “How Does Brief Motivational Intervention Change Heavy Drinking and Harm Among Underage Young Adult Drinkers?” is published in the Journal of Consulting and Clinical Psychology. The National Institute on Alcohol Abuse and Alcoholism supported this research effort.

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