Implicit theories of relationships and self-expansion: Implications for relationship functioning

Abstract

Individuals hold implicit beliefs about the nature of romantic relationships. Growth beliefs are characterized by thoughts that romantic relationships can be cultivated over time, whereas destiny beliefs are characterized by thoughts that relationships are either meant to be or not. In the current research, we propose that individuals who hold strong growth beliefs (but not destiny beliefs) should be more likely to experience self-expansion, as these individuals are oriented toward relationship cultivation. In turn, this increase in self-expansion should promote greater relationship quality and maintenance. Across three studies (two cross-sectional and one longitudinal) that sampled from varying populations and relationship types, we found evidence that self-expansion mediates the association between growth beliefs (but not destiny beliefs) and satisfaction, commitment, accommodation, and dissolution consideration. These data provide insights into the mechanisms by which implicit theories influence relationship functioning and establish implicit theories as an individual-level antecedent to the self-expansion experience.

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