Mackintosh Margaret-Anne, Earleywine Mitch, Dunn Michael E
Seeley G. Mudd Building, Room 518, Department of Psychology, University of Southern California, Los Angeles, CA 90089-1061, USA.
Addict Behav. 2006 Sep;31(9):1536-46. doi: 10.1016/j.addbeh.2005.11.009. Epub 2005 Dec 19.
The social facilitation scale of the Alcohol Expectancy Questionnaire-Adolescent version predicts subsequent drinking behavior and covaries with other important constructs. An examination of the interval-level measurement properties and potential biases of items could help improve the scale. Responses in a large sample (N=518) of undergraduates confirmed that the items fit a Rasch model for a single-factor, interval scale. Two items were biased when comparing non-drinkers, social drinkers and extreme drinkers. Four additional items showed gender bias. Removal of these items shortened the scale without decreasing correlations with two measures associated with drinking, while the strength with one measure was slightly decreased. This short form of the questionnaire should prove useful in the study of alcohol expectancies for social facilitation without drinking- or gender-related bias. These results also support the utility of Rasch modeling.
《酒精期望问卷青少年版》的社会促进量表能够预测后续饮酒行为，并与其他重要构念相关。对量表项目的区间水平测量属性和潜在偏差进行考察有助于改进该量表。对大量本科生样本（N = 518）的回答进行分析，证实这些项目符合单因素区间量表的拉施模型。在比较不饮酒者、社交饮酒者和酗酒者时，有两个项目存在偏差。另外四个项目存在性别偏差。去除这些项目后，量表缩短了，但与两项饮酒相关测量指标的相关性并未降低，不过与其中一项测量指标的相关性略有下降。这种简化版问卷在研究无饮酒或性别相关偏差的社会促进酒精期望方面应会很有用。这些结果也支持了拉施模型的实用性。
