Individual and Situational Factors That Influence the Efficacy of Personalized Feedback Substance Use Interventions for Mandated College Students

Eun Young Mun, Helene R. White, Thomas J. Morgan

Research output: Contribution to journalArticle

23 Scopus citations


Little is known about individual and situational factors that moderate the efficacy of personalized feedback interventions (PFIs). Mandated college students (N = 348) were randomly assigned either to a PFI delivered in the context of a brief motivational interview (BMI; n = 180) or to a written PFI only (WF) condition and were followed up at 4 months and 15 months postintervention. The authors empirically identified heterogeneous subgroups utilizing mixture modeling analysis based on heavy episodic drinking and alcohol-related problems. The 4 identified groups were dichotomized into an improved group (53.4%) and a nonimproved group (46.6%). Logistic regression results indicated that the BMI was no more efficacious than the WF across all mandated students. However, mandated students who experienced a serious incident requiring medical or police attention and those with higher levels of alcohol-related problems at baseline benefited more from the BMI than from the WF. It may be an efficacious and cost-effective approach to provide a written PFI for low-risk mandated students and an enhanced PFI with a BMI for those students who experience a serious incident or have higher baseline alcohol-related problems.

Original languageEnglish
Pages (from-to)88-102
Number of pages15
JournalJournal of Consulting and Clinical Psychology
Issue number1
Publication statusPublished - 1 Feb 2009



  • alcohol
  • brief intervention
  • college students
  • evidence-based treatment
  • personalized feedback intervention

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