Creation and validation of the barriers to alcohol reduction (BAR) scale using classical test theory and item response theory.
Creation and validation of the barriers to alcohol reduction (BAR) scale using classical test theory and item response theory.
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使用经典测试理论和项目反应理论创建和验证酒精减少障碍（BAR）量表。
DOI：
10.1016/j.abrep.2018.01.004
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发表时间：
2018
影响因子：
--
通讯作者：
Harlow,LisaL
中科院分区：
文献类型：
--
作者：
Kunicki,ZacharyJ;Schick,MelissaR;Spillane,NicheaS;Harlow,LisaL
Those who binge drink are at increased risk for alcohol-related consequences when compared to non-binge drinkers. Research shows individuals may face barriers to reducing their drinking behavior, but few measures exist to assess these barriers. This study created and validated the Barriers to Alcohol Reduction (BAR) scale. Participants were college students (n= 230) who endorsed at least one instance of past-month binge drinking (4+ drinks for women or 5+ drinks for men). Using classical test theory, exploratory structural equation modeling found a two-factor structure of personal/psychosocial barriers and perceived program barriers. The sub-factors, and full scale had reasonable internal consistency (i.e., coefficient omega = 0.78 (personal/psychosocial), 0.82 (program barriers), and 0.83 (full measure)). The BAR also showed evidence for convergent validity with the Brief Young Adult Alcohol Consequences Questionnaire (r= 0.39,p< .001) and discriminant validity with Barriers to Physical Activity (r= −0.02,p= .81). Item Response Theory (IRT) analysis showed the two factors separately met the unidimensionality assumption, and provided further evidence for severity of the items on the two factors. Results suggest that the BAR measure appears reliable and valid for use in an undergraduate student population of binge drinkers. Future studies may want to re-examine this measure in a more diverse sample.
