New developments in the assessment of weight-related experiential avoidance (AAQW-Revised)
New developments in the assessment of weight-related experiential avoidance (AAQW-Revised)
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DOI：
10.1016/j.jcbs.2016.06.001
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发表时间：
2016-07-01
影响因子：
5
通讯作者：
Lillis, Jason
中科院分区：
文献类型：
--
作者：
Palmeira, Lara;Cunha, Marina;Lillis, Jason
经验回避，定义为试图控制或改变不想要的内部经验时，这样做会造成伤害，一直与身体和心理健康问题，并已在传统上使用接受和行动问卷测量。一些研究强调，必须制定针对具体内容的措施，以更好地掌握特定人群的相关进程。其中一项措施是接受和行动问卷的体重相关的困难（AAQ-W），它衡量经验避免不必要的体重相关的想法，感受和行动。AAQW的因素结构仍需进一步审查。本研究的目的是通过多组分析，在现有的因素结构基础上进行验证性因素分析，并检验跨组测量不变性，为AAQW的进一步发展做出贡献。使用了三个不同的样本：CFA使用了来自BMI < 25的普通人群的215名女性（样本1）; 210名超重或肥胖寻求治疗的女性（样本2）; AAQW的时间稳定性和对变化的敏感性使用了58名超重和肥胖女性的样本（样本3）。结果支持AAQW（10项）的修订版和更短版本，我们称之为AAQW-R（修订版），具有三因素结构（食物作为控制，体重作为生活障碍，体重耻辱），显示出与数据的良好拟合。此外，证实了各组间的测量不变性。最后，AAQW-R被证明是一个可靠的，稳定的措施和敏感的临床变化。总的来说，这项研究提供了新的进展，在评估体重相关的经验性回避，提出了一个修订版的AAQW。此外，它为AAQW-R在一般人群和临床人群中的有用性提供了证据。(C)2016年，加入社会科学院。爱思唯尔公司出版All rights reserved.
Experiential avoidance, defined as attempts to control or change unwanted internal experiences when doing so causes harm, has been consistently associated with physical and mental health problems and has been traditionally measured using the Acceptance and Action Questionnaire. Several studies have highlighted the importance of developing content-specific measures to better capture relevant processes for specific populations. One such measure is the Acceptance and Action Questionnaire for Weight-Related Difficulties (AAQ-W), which measures experiential avoidance of unwanted weight related thoughts, feelings and actions. The AAQW factor structure still requires further examination. The present study aims to contribute to the further development of the AAQW by conducting a confirmatory factor analysis (CFA) based on the existent factor structures and testing the measurement invariance across groups, through a multi-group analysis. Three distinct samples were used: the CFA used 215 women from the general population with BMI < 25 (sample 1); 210 overweight or obese treatment seeking (sample 2); AAQW's temporal stability and sensitivity to change was assessed using a sample of 58 overweight and obese women enrolled in Kg-Free (sample 3). Results supported a revised and shorter version of the AAQW (10 items) that we call AAQW-R (revised) with a three-factor structure (food as control, weight as barrier to living, weight-stigma) that showed a good fit to the data. Also, the measurement invariance across groups was confirmed. Finally, AAQW-R proved to be a reliable, stable measure and sensitive to clinical changes. Overall, this study offers new advances in the assessment of weight-related experiential avoidance, proposing a revised version of the AAQW. Moreover, it provides evidence for the usefulness of the AAQW-R both in general and clinical populations. (C) 2016 Association for Contextual Behavioral Science. Published by Elsevier Inc. All rights reserved.