Cappelleri Joseph C, Bushmakin Andrew G, Baker Christine L, Merikle Elizabeth, Olufade Abayomi O, Gilbert David G
Pfizer Inc, Global Research and Development, Eastern Point Road, MS 8260-2222 Groton, CT 06340, USA.
Drug Alcohol Depend. 2007 Oct 8;90(2-3):234-42. doi: 10.1016/j.drugalcdep.2007.04.002. Epub 2007 May 7.
We conducted an investigation of the 10-item Brief Questionnaire of Smoking Urges (QSU-Brief) to confirm its hypothesized two-factor structure and to assess the validity and reliability of its total score and these factors. Data were obtained from a 7-week clinical trial on smoking cessation (N=626). The hypothesized two-factor structure of the QSU-Brief was supported by fit indexes (>0.90) from a confirmatory factor analysis at each of three relevant time points (baseline, Week 2, Week 4). Corresponding values of Cronbach's alpha were acceptable (>0.75) on the Total Craving Score and on Factors 1 and 2. This research supports the validity and reliability of the instrument and confirms the proposed two-dimensional structure of self-reported craving as measured by the QSU-Brief.
我们对10项吸烟冲动简短问卷（QSU-Brief）进行了一项调查，以确认其假设的两因素结构，并评估其总分及这些因素的有效性和可靠性。数据来自一项为期7周的戒烟临床试验（N = 626）。QSU-Brief假设的两因素结构在三个相关时间点（基线、第2周、第4周）的每一个时间点上，都得到了验证性因素分析的拟合指数（>0.90）的支持。在总渴望得分以及因素1和因素2上，克朗巴哈系数的相应值是可接受的（>0.75）。本研究支持该工具的有效性和可靠性，并确认了通过QSU-Brief测量的自我报告渴望的二维结构。
