出版社：Faculdade de Psicologia, Pontifícia Universidade Católica do Rio Grande do Sul
摘要：This study aimed to evaluate the psychometric properties of an instrument measuring alcohol-related problems typical of undergraduate students. The participants were 401 undergraduate students that reported using alcohol at least occasionally (mean age = 22.44; SD = 3.43), which also answered a preliminary 24-item measure. Rasch modeling was used to estimate items regarding in terms of difficulties (δi), local independence and and Differential Item Functioning (DIF) among items for each gender. After excluding two items with DIF, results showed adequate psychometric properties for a relatively non-biased, unidimensional 20-item measure. Item reliability was .99 and person reliability was .73. Evidence suggests that the new instrument adequately addresses a large continuum of drinking problems that present themselves in the university context. Recommendations for use, along with a logit and standardized logit scales are presented for the interpretation of the scores
关键词：Alcohol use;item response theory;differential item functioning.;Uso de alcohol;teoría de respuesta al ítem;funcionamiento diferencial del ítem.;Uso de álcool;teoria de resposta ao item;funcionamento diferencial do item.
