Development and Initial Validation of the Multidimensional Quality of Relationship Scale (M-QoRS)

This study presents the initial validation of the Multidimensional Quality of Relationship Scale (M-QoRS), which was designed to capture the dynamic nature of both unidimensional and multidimensional intimate relationship quality. Confirmatory Factor Analyses of online survey data from 745 people tested a series of models, ultimately revealing a bi-factor solution as the best fitting structure. This final model includes a Relationship quality general factor and four domain-specific latent variables, namely Quality of communication, Conflict management, Feeling connected, and Overall happiness with one’s relationship, all explaining variability in 17 manifest variables. An originally included Sex and Intimacy factor was dropped as a result of model respecifications. The M-QoRS also shows optimal reliability as well as criterion, construct, and known-groups validity. Cross-validation tests also confirm that this structure could be replicated in other samples. Being designed within the context of mobile health (mHealth) apps and digital wellbeing promotion, the scale can be a useful instrument for evaluating online relationships programs and interventions.