Medical Psychology and Medical Sociology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany.
Department of Mental Health University Medical Center of university of Leipzig, Germany, Leipzig, Germany.
PLoS One. 2020 Apr 2;15(4):e0230864. doi: 10.1371/journal.pone.0230864. eCollection 2020.
In order to ensure the concentration, compliance and motivation of the participants, a short version of 12 items was extracted from the "Experiences in Close Relationships Questionnaire (ECR)". Even though this short English version shows equally good validity and reliability as the long version, there have been no representative norm values and psychometric characteristics available for the short version in German. Therefore, the German 12-item ECR was implemented in a representative sample of 1,127 males and 1,237 females (mean age M = 49.93; SD = 12.31) from the general public (N = 2,364). The reliability values of the German 12-item ECR in the representative sample are not as good as the long version with the 36- items version (Alpha = .54-72), and the 12-item ECR factorial structure failed to show the factorial validity. Since the EFA revealed that only half the items loaded on the expected factors, an even shorter form with six items was construed and tested psychometrically. Even though the item numbers were reduced, the reliability values of the German 6-item ECR improved and were as good as the long version with 36 items (Alpha = .73-90). Furthermore, factorial validity could be shown by CFA (CFI = .981, SRMR = .038, RMSEA = .079, TLI = .964) with scalar invariance across gender and age. In sum, the 6-item ECR is a reliable and factorial scalar attachment questionnaire. Due to its shortness, it is applicable to different research fields. However, reference data from a clinical sample are still missing.
为了确保参与者的专注度、依从性和积极性，从“亲密关系经历问卷（ECR）”中提取了一个 12 项的简短版本。尽管这个简短的英文版本与长版本具有同等良好的有效性和可靠性，但在德语中，该简短版本还没有代表正常值和心理测量特征。因此，德国的 12 项 ECR 在一个具有代表性的男性样本（n=1127）和女性样本（n=1237）（平均年龄 M=49.93；SD=12.31）中实施，该样本来自普通大众（N=2364）。德国 12 项 ECR 在代表性样本中的可靠性值不如长版本（36 项）（Alpha=.54-72），并且 12 项 ECR 因子结构未能显示出因子有效性。由于 EFA 表明只有一半的项目加载在预期的因子上，因此构建并测试了一个甚至更短的 6 项形式。尽管项目数量减少了，但德国 6 项 ECR 的可靠性值得到了提高，与 36 项长版本一样好（Alpha=.73-90）。此外，通过 CFA（CFI=.981，SRMR=.038，RMSEA=.079，TLI=.964）可以显示出因子有效性，性别和年龄的标量不变性。总之，6 项 ECR 是一种可靠且具有因子标量的依恋问卷。由于其简短，它适用于不同的研究领域。但是，仍然缺乏来自临床样本的参考数据。
