ABSTRACT
This study validated the Couple Communication Satisfaction Scale (CCSS) in Türkiye through two studies with distinct samples. Study I (N = 371, mean age = 27.56) examined factorial validity, reliability, item response theory, and measurement invariance, confirming an 11-item, five-factor structure via confirmatory factor analysis with acceptable internal consistency. Study II (N = 482, mean age = 29.24) tested structural relations among family communication, dyadic trust, and relationship satisfaction using structural equation modeling, revealing that family communication positively predicted dyadic trust and couple communication satisfaction, which in turn predicted higher relationship satisfaction. Overall, findings indicate that the CCSS is a valid and reliable instrument for assessing couple communication satisfaction in the Turkish cultural context.