Steiger B, Welsch K, Niederstrasser N, Hartmann S, Nilges P, Ljutow A, Ettlin D
Interdisziplinäre orofaziale Schmerzsprechstunde, Zentrum für Zahnmedizin (ZZM), Universität Zürich, Plattenstraße 11, 8032, Zürich, Schweiz.
Schmerzambulanz der Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universität des Saarlandes Homburg (UKS), Homburg, Deutschland.
Schmerz. 2019 Apr;33(2):106-115. doi: 10.1007/s00482-018-0345-z.
Occupational and social rehabilitation can be influenced by perceived injustice that results from pain. Currently, the Injustice Experience Questionnaire (IEQ), the tool most commonly used to assess perceived injustice, is not available in German. The aim of this study was the validation of the German-language version of the IEQ.
The validation of the IEQ was carried out via a web-based survey. For this purpose, participants completed the IEQ and construct-related scales analogous to the original study Tampa Scale of Kinesiophobia (TSK), Depression scale of the Depression Anxiety and Stress Scales (D-DASS), Pain Disability Index (PDI), and McGill Pain Questionnaire (MPQ). In addition, the participants completed questions on their socioeconomic status and on the cause of their pain, taken from the German Pain Questionnaire.
Of 223 respondents, 134 (60.1%) returned a completed questionnaire and were included in the study. In all, 26.1% of participants reported suffering from pain resulting from accidents. None of the reviewed one- to three-factor solutions for the IEQ's structure achieved a good model fit. The best results were found for a two-factor solution, whereby the exploratory factor analysis revealed almost all items loaded highly on both factors and the confirmatory factor analysis showed high correlations between the factors. These findings are consistent with previous studies. The IEQ correlated highly and significantly with the other psychological instruments. There were no floor or ceiling effects. Cronbach's α for the German IEQ version was 0.93 and thus attests a high level of internal consistency.
The analyses attest the excellent psychometric properties of the German translation of the IEQ and so the German-language version of the IEQ can be used as a validated questionnaire to screen for perceived injustice.
职业和社会康复可能会受到因疼痛导致的感知不公正的影响。目前，用于评估感知不公正的最常用工具——不公正体验问卷（IEQ）没有德语版本。本研究的目的是对IEQ德语版进行验证。
通过基于网络的调查对IEQ进行验证。为此，参与者完成了IEQ以及与原研究类似的相关量表，即坦帕运动恐惧量表（TSK）、抑郁焦虑压力量表中的抑郁量表（D-DASS）、疼痛残疾指数（PDI）和麦吉尔疼痛问卷（MPQ）。此外，参与者还完成了关于其社会经济状况和疼痛原因的问题，这些问题取自德国疼痛问卷。
在223名受访者中，134人（60.1%）返回了完整的问卷并被纳入研究。总体而言，26.1%的参与者报告患有因事故导致的疼痛。对IEQ结构的所有一至三因素解决方案进行评估，均未实现良好的模型拟合。两因素解决方案的结果最佳，探索性因素分析显示几乎所有项目在两个因素上的负荷都很高，验证性因素分析表明各因素之间具有高度相关性。这些发现与先前的研究一致。IEQ与其他心理测量工具高度显著相关。没有地板效应或天花板效应。德语版IEQ的克朗巴哈α系数为0.93，因此证明其具有高度的内部一致性。
分析证明了IEQ德语翻译版具有出色的心理测量特性，因此IEQ德语版可作为一种经过验证的问卷，用于筛查感知不公正。
