Department of Education Studies and Psychology, University of Siegen, Adolf-Reichwein-Str. 2a, 57076, Siegen, Germany.
Department of Clinical Psychology and Psychotherapy, Philipps-University of Marburg, Gutenbergstraße 18, 35037, Marburg, Germany.
Qual Life Res. 2018 Oct;27(10):2691-2697. doi: 10.1007/s11136-018-1924-2. Epub 2018 Jun 27.
Psychosomatic symptoms and mental health problems are highly prevalent in multimorbid elderly people challenging general practitioners to differentiate between normal stress and psychopathological conditions. The 4DSQ is a Dutch questionnaire developed to detect anxiety, depression, somatization, and distress in primary care. This study aims to analyze measurement equivalence between a German version and the original Dutch instrument.
A Dutch and a German sample of multimorbid elderly people, matched by gender and age, were analyzed. Equivalence of scale structures was assessed by confirmatory factor analysis (CFA). To evaluate measurement equivalence across languages, differential item functioning (DIF) was analyzed using Mantel-Haenszel method and hybrid ordinal logistic regression analysis. Differential test functioning (DTF) was assessed using Rasch analysis.
A total of 185 German and 185 Dutch participants completed the questionnaire. The CFA confirmed one-factor models for all scales of both 4DSQ versions. Nine items in three scales were flagged with DIF. The anxiety scale showed to be free of DIF. DTF analysis revealed negligible scale impact of DIF.
The German 4DSQ demonstrated measurement equivalence to the original Dutch instrument. Hence, it can be considered a valid questionnaire for the screening for mental health problems in primary care.
身心症状和心理健康问题在多病的老年人中非常普遍，这给全科医生带来了挑战，需要区分正常压力和精神病理学状况。4DSQ 是一种荷兰开发的问卷，用于在初级保健中检测焦虑、抑郁、躯体化和困扰。本研究旨在分析德国版本与原始荷兰仪器之间的测量等效性。
分析了匹配性别和年龄的多态性老年荷兰语和德语样本。通过验证性因素分析（CFA）评估量表结构的等效性。为了评估跨语言的测量等效性，使用 Mantel-Haenszel 方法和混合有序逻辑回归分析分析了差异项目功能（DIF）。使用 Rasch 分析评估了差异测试功能（DTF）。
共有 185 名德国人和 185 名荷兰人完成了问卷。CFA 证实了两个 4DSQ 版本的所有量表的单因素模型。三个量表中的九个项目具有 DIF。焦虑量表没有 DIF。DTF 分析显示 DIF 对量表的影响可以忽略不计。
德国 4DSQ 与原始荷兰仪器具有测量等效性。因此，它可以被认为是初级保健中筛查心理健康问题的有效问卷。
