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PLoS One. 2012;7(5):e37380. doi: 10.1371/journal.pone.0037380. Epub 2012 May 25.

Validating the German version of the Quality of Relationship Inventory: confirming the three-factor structure and report of psychometric properties.

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  • 1Department of Psychosomatic Medicine and Psychotherapy, Johannes Gutenberg-University Mainz, Mainz, Germany. iris.reiner@unimedizin-mainz.de


Research on psychosocial influences such as relationship characteristics has received increased attention in the clinical as well as social-psychological field. Several studies demonstrated that the quality of relationships, in particular with respect to the perceived support within intimate relationships, profoundly affects individuals' mental and physical health. There is, however, a limited choice of valid and internationally known assessments of relationship quality in Germany. We report the validation of the German version of the Quality of Relationships Inventory (QRI). First, we evaluated its factor structure in a representative German sample of 1.494 participants by means of confirmatory factor analysis. Our findings support the previously proposed three-factor structure. Second, importance and satisfaction with different relationship domains (family/children and relationship/sexuality) were linked with the QRI scales, demonstrating high construct validity. Finally, we report sex and age differences regarding the perceived relationship support, conflict and depth in our German sample. In conclusion, the QRI is a reliable and valid measurement to assess social support in romantic relationships in the German population.

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