Department of Psychology, University of Houston, Houston, TX, USA.
Department of Behavioral Science, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Cogn Behav Ther. 2021 Nov;50(6):492-508. doi: 10.1080/16506073.2021.1901773. Epub 2021 Apr 29.
Evidence suggests that electronic cigarette (e-cigarette) users have difficulty quitting e-cigarettes. The Electronic Cigarette Barriers to Cessation Scale (E-BCS) was developed to assess barriers to cessation among e-cigarette users. Yet, no work has evaluated the psychometric properties of the E-BCS. The current study utilized data from two independent samples of adult e-cigarette users to evaluate the psychometric properties and structure of the E-BCS. In Study 1, competing models of the E-BCS were evaluated, and initial construct validity and reliability were explored using data from 599 adult e-cigarettes users (52.3% female, = 35.16 years, SD = 10.30). Results supported a unidimensional structure for the E-BCS comprised of 18 items. In Study 2, the unidimensional structure of the 18-item E-BCS and construct validity were evaluated among a sample of 516 current e-cigarette using adults (52.3% female; = 34.74, SD = 11.37). Results confirmed the unidimensional structure, measurement invariance across sex, and construct validity across related e-cigarette behavior constructs and psychopathology for the E-BCS. These findings suggest that the E-BCS is a potentially useful clinical instrument for measuring barriers that may interfere with e-cigarette cessation.
有证据表明，电子烟使用者很难戒掉电子烟。为了评估电子烟使用者戒烟的障碍，开发了电子烟戒烟障碍量表（E-BCS）。然而，目前还没有研究评估 E-BCS 的心理测量学特性。本研究利用来自两个独立的成年电子烟使用者样本的数据，评估了 E-BCS 的心理测量学特性和结构。在研究 1 中，评估了 E-BCS 的竞争模型，并使用来自 599 名成年电子烟使用者（52.3%为女性，平均年龄为 35.16 岁，标准差为 10.30）的数据探索了初始的结构效度和信度。结果支持 E-BCS 的单维度结构，由 18 个项目组成。在研究 2 中，使用 516 名当前使用电子烟的成年人（52.3%为女性；平均年龄为 34.74 岁，标准差为 11.37）的数据评估了 18 项 E-BCS 的单维度结构和结构效度。结果证实了 E-BCS 的单维度结构、性别间的测量不变性，以及与相关电子烟行为结构和精神病理学的结构效度。这些发现表明，E-BCS 是一种可能有用的临床工具，可以衡量可能干扰电子烟戒烟的障碍。
