Testing the Extrinsic Convergent Validity of Relationship Quality Constructs

This is the authors' abstract. We don't add key points for this paper.

Relationship scientists have developed a rich array of constructs to describe the quality of relationships. Yet, questions have emerged regarding the validity of these constructs. Building on these questions, we examine the validity of a set of core constructs in relationship science. Specifically, we use extrinsic convergent validity testing to assess the extent to which the six components of the perceived relationship quality components measure (PRQC) represent distinct constructs in predicting self‐reported behavior within romantic relationships. Across one between‐subjects study ( N = 601) and one within‐subjects study ( N = 603), we used multiple indices of heterogeneity, structural equation modeling, and factor analysis to demonstrate the utility of extrinsic convergent validity testing and illustrate that some components of the PRQC appear to uniquely predict relationship behavior, whereas others may not. Implications and future directions are discussed, with particular emphasis placed on refining both measurement and theory practices.