To be or not to be satisfied in your romantic relationship: evaluating the reliability and validity of the Valentine scale.

An intimate partner relationship is one of the most significant life goals for humans. Romantic relationships can promote healthy behavior and buffer against the development of psychiatric disorders. However, reliable and valid measures of relationship satisfaction are lacking. The Valentine scale is a freely available brief measure of relationship satisfaction (https://osf.io/fb72s), intended to provide an easily interpretable index of relationship satisfaction. Across two studies, we evaluated the reliability, validity, and factor structure of the Valentine scale. Study One (n = 851) explored the factor structure of the Valentine scale, assessed its test-retest reliability, and criterion-related validity. Study Two (n = 527) confirmed the factor structure of the Valentine scale, explored its measurement invariance, and further evaluated criterion-related validity. The results supported a unidimensional structure of the Valentine scale. Furthermore, the Valentine scale exhibited good internal reliability (Cronbach's alpha = .75 and .81 in Study One and Two, respectively), high test-retest reliability (ICC3 = .80 at a two-week follow-up in Study One), and appropriate criterion-related validity demonstrating positive correlations with other measures of relationship satisfaction and positive affect, as well as and negative correlations with measures of psychopathology. Together, these findings provide good support for the usage of the Valentine scale to quantify relationship satisfaction.