Personality similarity or complementarity? Self-disclosure influences relationship satisfaction among young couples

Pui Yan Penny YAM

Research output: ThesisBachelor's Theses


The study examined the relationship between personality similarity and romantic relationship satisfaction through self-disclosure and partner’s disclosure in early adulthood. One-hundred pairs of Hong Kong heterosexual couples (89 dating pairs and 11 married pairs) were recruited. All the participants were young adults with a mean age of 24.47 and 22.82 for men and women, respectively. They were asked to complete three questionnaires which were The Big Five Inventory, The Self-disclosure Index and The Relationship Assessment Scale (RAS). An actor-partner interdependence model was conducted to examine these relationships. The result showed the personality similarity positively related to the level of self-disclosure and facilitate own relationship satisfaction in early adulthood, even after the main variables such as partner’s self-disclosure, partner’s relationship satisfaction was statistically controlled. Although personality similarity increases the level of partner’s disclosure, it had less correlation between partner’s disclosure and own relationship satisfaction after controlling self-disclosure. The results suggest that the higher level of personality similarity, the higher level of self-disclosure and relationship satisfaction the young couples received. All rights reserved.
Original languageEnglish
QualificationBachelor of Social Sciences (Honours)
Awarding Institution
  • The Education University of Hong Kong
  • LI, Tianyuan, Supervisor
Publication statusPublished - 2018


  • Personality similarity
  • Self-disclosure
  • Partner’s disclosure
  • Relationship satisfaction
  • Theses and Dissertations
  • Thesis (BSocSc(Psy))--The Education University of Hong Kong, 2018.


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