Center for Healthcare Organization and Implementation Research (CHOIR), VA Boston Healthcare System (152M), 150 South Huntington Avenue, Boston, MA, 02130, USA.
Department of Anthropology, University of Iowa, 114 Macbride Hall, Iowa City, IA, 52242-1422, USA.
Qual Life Res. 2018 Nov;27(11):2953-2964. doi: 10.1007/s11136-018-1963-8. Epub 2018 Sep 4.
The Quality of Life, Enjoyment, and Satisfaction Questionnaire-Short Form (Q-LES-Q-SF) is a recovery-oriented, self-report measure with an uncertain underlying factor structure, variously reported in the literature to consist of either one or two domains. We examined the possible factor structures of the English version in an enrolled mental health population who were not necessarily actively engaged in care.
As part of an implementation trial in the U.S. Department of Veterans Affairs mental health clinics, we administered the Q-LES-Q-SF and Veterans RAND 12-Item Health Survey (VR-12) over the phone to 576 patients across nine medical centers. We used a split-sample approach and conducted an exploratory factor analysis (EFA) and multi-trait analysis (MTA). Comparison with VR-12 assessed construct validity.
Based on 568 surveys after excluding the work satisfaction item due to high unemployment rate, the EFA indicated a unidimensional structure. The MTA showed a single factor: ten items loaded on one strong psychosocial factor (α = 0.87). Only three items loaded on a physical factor (α = 0.63). Item discriminant validity was strong at 92.3%. Correlations with the VR-12 were consistent with the existence of two factors.
The English version of the Q-LES-Q-SF is a valid, reliable self-report instrument for assessing quality of life. Its factor structure can be best described as one strong psychosocial factor. Differences in underlying factor structure across studies may be due to limitations in using EFA on Likert scales, language, culture, locus of participant recruitment, disease burden, and mode of administration.
生活质量、享受和满意度问卷-简式（Q-LES-Q-SF）是一种以康复为导向的自我报告量表，其潜在的因素结构不确定，在文献中各种报告结果包括一个或两个领域。我们在一个不一定积极参与治疗的心理健康人群中检查了英文版本的可能的因素结构。
作为美国退伍军人事务部心理健康诊所实施试验的一部分，我们通过电话向九个医疗中心的 576 名患者提供了 Q-LES-Q-SF 和退伍军人 RAND 12 项健康调查（VR-12）。我们使用了分割样本方法，并进行了探索性因素分析（EFA）和多特质分析（MTA）。与 VR-12 的比较评估了结构效度。
在排除因高失业率而导致的工作满意度项目后，基于 568 份调查，EFA 表明存在一个单一维度结构。MTA 显示出一个单一因素：十个项目加载在一个强大的心理社会因素上（α=0.87）。只有三个项目加载在一个身体因素上（α=0.63）。项目鉴别效度为 92.3%。与 VR-12 的相关性与存在两个因素一致。
Q-LES-Q-SF 的英文版本是一种有效的、可靠的自我报告工具，用于评估生活质量。其因素结构可以最好地描述为一个强大的心理社会因素。研究中潜在的因素结构差异可能是由于在使用 EFA 时存在 Likert 量表、语言、文化、参与者招募地点、疾病负担和管理模式的限制。
