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Classifying risky-drinking college students: another look at the two-week drinker-type categorization.

Joseph W LaBrie1, Eric R Pedersen, Summer Tawalbeh

  • 1Loyola Marymount University, Department of Psychology, 1 LMU Drive, Suite 4700, Los Angeles, California 90045, USA. jlabrie@lmu.edu

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The 2-week period for categorizing heavy episodic drinking in college students is ineffective. Current labels for nonbinge, binge, and frequent binge drinkers show inconsistencies, suggesting a need for revised assessment methods.

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Area of Science:

  • Public Health
  • Addiction Research
  • Student Health

Background:

  • Heavy episodic drinking is a significant public health concern among college students.
  • Current classification methods rely on a 2-week assessment window.
  • Accurate identification of drinking patterns is crucial for intervention.

Purpose of the Study:

  • To evaluate the reliability of the 2-week period for classifying college student drinking behavior.
  • To assess the consistency of drinker-type labels (nonbinge, binge, frequent binge) over a 1-month period.
  • To identify limitations in current heavy episodic drinking categorization.

Main Methods:

  • Utilized a 3-month Timeline Followback assessment across three distinct college student samples.
  • Compared drinking behavior and resulting drinker-type labels between the first and last 2 weeks of a month.
  • Analyzed data from 104 volunteers, 283 adjudicated students, and 238 freshmen male students.

Main Results:

  • Significant inconsistencies were found in drinker-type labels when comparing the first and last 2 weeks of the month.
  • Between 40-50% of participants received different drinker-type classifications across the month.
  • Variability in alcohol-related problems was observed among nonbinge drinkers, and the frequent binge drinker label showed considerable variation.

Conclusions:

  • The current 2-week definition is inadequate for accurately identifying risky drinking college students.
  • Expanding the assessment window beyond 2 weeks is recommended for more precise categorization.
  • Developing alternative classification schemes may improve the identification of at-risk student drinkers.