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This paper offers new information on the reliability and validity of the Relationship Assessment Scale (RAS; Hendrick, 1988), a seven-item generic measure of relationship satisfaction. The RAS shows moderate to high correlations with measures of marital satisfaction, good test-retest reliability and consistent measurement properties across samples of ethnically diverse and age-diverse couples, as well as partners seeking marital and family therapy. The RAS is an appropriate, useful and brief measure for partnered love relationships in a wide variety of research settings.
Hendrick et al. (Sun,) studied this question.