Undergraduate Marijuana Use and Anger

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Abstract
The Anger Expression Scale and a questionnaire regarding marijuana usage were administered to 497 undergraduate college students enrolled at a rural university in the midwestern United States. Four levels of marijuana use were defined by the questionnaire: nonuser, occasional user, frequent user, and daily user. No significant main effect was found on the Anger-In or Total Anger Expression scales, but differences among the four levels of use were noted on the Anger-Out scale. The trend analysis showed a significant linear trend for the Anger-Out and Total Anger Expression scales. Implications of these findings are discussed.