Effect of religion and religiosity on alcohol use in a college student sample.

Two hundred and sixty-three alcohol using college students completed a questionnaire on their levels of alcohol use, problems with alcohol use, reasons for drinking, perceptions of control over drinking, impulsivity, venturesomeness, irrational beliefs, neuroticism, expectations of alcohol effects, depression, social norms, religious affiliation and intrinsic and extrinsic religiosity. Analyses of variance revealed that students with no religious affiliation reported significantly higher levels of drinking frequency and quantity, getting drunk, celebratory reasons for drinking and perceived drinking norms than those of either Catholic or Protestant religious affiliation, while no significant differences across groups were found for alcohol use problems. Protestants reported significantly higher levels of perceived drinking control than Catholics. Intrinsic religiosity, reflecting one's ego involvement with the tenets of one's religion, appeared to play a more important positive role over drinking behavior for Protestants than for Catholics.