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Abstract
The aim of this study was development and to analyze the reliability of risk perception questionnaire about alcohol consumption in university students. The sample was composed by 1377 university students. In the data analysis the authors used categorical principal components analysis, two step cluster analysis and the decision trees. Two dimensions was found, the first dimension was associated with the motivationalbehavioral component of risk perception and the second with information about risk of alcohol consumption. Both dimensions shows high levels of reliability and it related with the three clusters identified according the adequacy of risk perception about alcohol consumption. The decision tree obtained 84.4% of good classifications; it emphasizes like predictors items of motivational-behavioral dimension. The instrument designed to assess risk perception on alcohol consumption in university students showed adequate levels of reliability which favors its application in this context.
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