Examining short-term and long-term effects of self-esteem on relationship satisfaction using a dyadic response surface analysis

The present study investigates the relationship between self-esteem, its interactive patterns within couples, and relationship satisfaction. We employed dyadic response surface analysis (DRSA), an advanced method for examining the links between dyadic interaction patterns and outcome variables. Analyzing data from 731 Dutch heterosexual couples from the Longitudinal internet Studies for the Social Sciences data set across short-term (two-month) and long-term (two-year) timeframes, our findings align with previous research. Both actor and partner self-esteem had significant positive effects on relationship satisfaction, indicating that one's self-esteem is positively associated with outcomes for both oneself and one's partner. Additionally, we observed an additive effect where the combined self-esteem of a couple was positively associated with satisfaction. However, an actor superiority effect was noted, where individuals were most satisfied when self-reporting higher self-esteem than their partners, suggesting that one's own self-esteem plays a more crucial role in their relationship perceptions than their partner's and that self-esteem may not act as a shared resource. We did not find a significant self-esteem similarity effect on relationship satisfaction. These results were consistent in both timeframe analyses, with and without covariate controls. This study contributes to bridging the gap between existing theoretical models by providing novel insights into how self-esteem patterns within couples relates to relationship wellbeing.