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Alcohol expectancies and drinking in different age groups.

Barbara C Leigh1, Alan W Stacy

  • 1Alcohol and Drug Abuse Institute, University of Washington, Seattle 98105, USA. leigh@u.washington.edu

Addiction (Abingdon, England)
|February 6, 2004
PubMed
Summary

Alcohol expectancies influence drinking behavior differently across age groups. Negative expectancies predict abstention, while positive expectancies predict drinking levels in drinkers, especially in younger individuals.

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Area of Science:

  • Psychology
  • Sociology
  • Public Health

Background:

  • Alcohol expectancies evolve with drinking experience.
  • Age is a significant factor influencing the relationship between alcohol expectancies and drinking behavior.

Purpose of the Study:

  • To investigate how positive and negative alcohol outcome expectancies predict drinking behavior across different age groups.
  • To understand the age-related differences in the predictive power of alcohol expectancies on drinking patterns.

Main Methods:

  • Utilized data from the National Alcohol Survey, employing a multi-stage area probability sample of US residents aged 12 and older (n=2875).
  • Assessed drinking habits (frequency, quantity, drunkenness) and alcohol expectancies through survey questions.
  • Employed structural equation models to analyze the relationship between expectancies and drinking behavior across six age groups.

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Main Results:

  • Alcohol outcome expectancy explained more variance in drinking behavior among younger respondents compared to older ones.
  • Positive expectancies were better predictors of drinking for individuals under 35, while negative expectancies were better predictors for those over 35.
  • Among current drinkers, positive expectancies predominantly predicted drinking levels when accounting for suppression effects.

Conclusions:

  • Negative alcohol expectancies are associated with predicting abstention, whereas positive expectancies predict the level of drinking among those who drink.
  • Future expectancy research should consider age-related differences, the distinction between drinkers and abstainers, and the impact of suppression effects.