Extroversion, anxiety and the perceived effects of alcohol.

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Abstract
To test the hypothesis that personality characteristics are related to alcohol-effect expectancies, 256 (115 men) college students were divided into groups on the basis of self-reported alcohol consumption and anxiety and introversion scores on the Sixteen Personality Factor Questionnaire. Three-way multivariate analyses of variance were conducted to determine expectancy differences by drinking behavior, personality characteristics and sex. Alcohol expectancy scores were found to vary with drinking behavior and personality measures. Elevated expectancy scores were associated with higher quantity-frequency measures of drinking; however, no significant sex differences were obtained. Extroverted students expected more social and physical pleasure, more relaxation and less arousal with drinking. Students with higher levels of trait anxiety expected more global positive changes, sexual enhancement, social assertion and arousal. The association of drinking behavior and personality with expectancies appears to be independent and personality with expectancies appears to be independent and additive.