Richardson Chris G, Ratner Pamela A
Health Care and Epidemiology, University of British Columbia, Vancouver, BC, Canada.
Addict Behav. 2005 May;30(4):697-709. doi: 10.1016/j.addbeh.2004.08.015.
This study used confirmatory factor analysis (CFA) to compare the relative fit of the following competing measurement models of the Fagerstrom Test for Nicotine Dependence (FTND): a single factor; two correlated factors (morning smoking and daytime smoking); and two correlated factors with one-item cross-loading. A single factor five-item version and a single factor four-item version of the FTND were also tested with the knowledge that these were not nested within the original six-item model. The subjects consisted of 231 smokers admitted for pre-surgical assessment at a large urban teaching hospital. The results confirm the findings of previously published exploratory factor analyses (EFA) suggesting that the items of the FTND are best modeled as two correlated factors with a cross-loading. Given the origin of the FTND items as measures of physical dependence, the degree to which it has undergone largely data-driven modifications, and the confirmed complex structure of the items, it is recommended that researchers re-examine the extent to which the scale adequately represents current conceptualizations of nicotine dependence.
本研究采用验证性因素分析（CFA）来比较尼古丁依赖的法格斯特龙测试（FTND）以下几种相互竞争的测量模型的相对拟合度：单因素模型；两个相关因素模型（早晨吸烟和白天吸烟）；以及具有一项交叉载荷的两个相关因素模型。还对FTND的单因素五项版本和单因素四项版本进行了测试，因为已知这两个版本并非嵌套于原始的六项模型中。研究对象包括在一家大型城市教学医院接受术前评估的231名吸烟者。结果证实了先前发表的探索性因素分析（EFA）的结果，表明FTND的项目最好建模为具有交叉载荷的两个相关因素。鉴于FTND项目作为身体依赖测量指标的起源、其在很大程度上经历的数据驱动修改，以及已确认的项目复杂结构，建议研究人员重新审视该量表在多大程度上充分代表了当前尼古丁依赖的概念。
