Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany.
Department of Clinical Psychology, Psychotherapy, and Assessment, University of Braunschweig, Braunschweig, Germany.
PLoS One. 2019 Feb 28;14(2):e0212758. doi: 10.1371/journal.pone.0212758. eCollection 2019.
The Quality of Marriage Index (QMI) is a 6-item internationally widely-used instrument assessing relationship satisfaction. This study aimed to evaluate (1) the psychometric properties of the German version in a representative sample of the German general population (N = 1431) as well as (2) effects of gender and age on relationship satisfaction. All participants were in a relationship. The German QMI demonstrates good item characteristics and excellent reliability (α = .94). The proposed one-factor solution was replicated. Differences in scoring on the QMI showed that males scored higher than females and differences between younger and older participants were found. The findings suggest that the German version of the QMI is suitable to reliably measure relationship satisfaction and may therefore be used as a brief screening instrument in a variety of settings and research questions. A cross validation in a sample of couples seeking help for relationship difficulties should be considered in future research. The limited number of items and the one-factor-solution do not suggest this instrument as a fine-tuned assessment tool for different dimensions of relationship satisfaction.
婚姻质量指数（QMI）是一种国际上广泛使用的 6 项工具，用于评估关系满意度。本研究旨在评估（1）在德国普通人群的代表性样本中，德文版的心理测量学特性（N = 1431），以及（2）性别和年龄对关系满意度的影响。所有参与者都处于恋爱关系中。德国 QMI 表现出良好的项目特征和极好的可靠性（α =.94）。提出的单因素解决方案得到了复制。在 QMI 上的得分差异表明，男性的得分高于女性，并且在年轻和年长参与者之间存在差异。研究结果表明，QMI 的德文版适合可靠地衡量关系满意度，因此可作为各种情况下和研究问题的简要筛选工具。未来的研究中应考虑在寻求解决关系困难的夫妇样本中进行交叉验证。项目数量有限和单因素解决方案并不表明该工具可作为关系满意度不同维度的精细评估工具。
