Introduction: According to the social learning theory (Bandura, 1977), parents are the first models that children see and learn from about different aspects of life, including what intimate relationship should be like. Vicarious learning is a very powerful learning mechanism because models (parents) usually do not invest any special efforts or skills to teach observers (children) about intimate relationships. Still, children learn more by observing than by following verbal instructions. Since the parents' relationship/marriage is the first model of an intimate relationship, it is not unusual for the intergenerational transmission of relationship skills and partner interactions (or relationship/marriage quality per se) to happen. Offspring develop inadequate interpersonal skills and behavior patterns from their parents, and they transfer them to their own intimate relationships in young adulthood. Usually, this transmission happens through some intervening variables (mediators) like relationship self-efficacy (which has an important place in Bandura's theory) and communication patterns. Thus, the main goal of this study was to investigate the effect of the both partners' experiences from families of origin on the quality of their intimate relationship in young adulthood within the context of the social learning theory. Methodology: Participants in this study were 309 married or cohabitating couples in young adulthood (20 – 40 years old). They have answered questions from several questionnaires: Children’s Perception of Interparental Conflict (Grych, Seid & Fincham, 1992; we have later developed its short version Observed Parents’ Conflict Behavior Scale), Norton’s Index of Marriage Quality (Norton, 1983), Relationship Self-Efficacy Scale (Lopez, Morúa & Rice, 2007) and Marital Communication Questionnaire (Bodenmann, 2000; in Ledermann, Bodenmann, Rudaz & Bradbury, 2010). Using dyadic methodology, we have tested two separate extended actor-partner interdependence models with relationship self-efficacy and communication as mediators. Results and discussion: There is no evidence of direct effect for the offspring's perception of their parents relationship on the offspring's relationship quality in young adulthood. Relationship selfefficacy and communication have proved to be significant mediators only for men. Men's perception of their parents' greater dysfunctionality is decreasing their relationship selfefficacy and positive communication patterns, which lowers the relationship quality. When it comes to women, indirect (mediator) effects were not significant in both models that we have tested. Results from both models show a significant dyadic ˝only actor˝ pattern for men. That means that their partners' (women's) results do not have an effect on men's outcomes. On the other hand, when it comes to women, there are significant partner effects in both models. This means that their partner's perception of the more dysfunctional relationship between his parents lowers his relationship self-efficacy and positive communication which leads to a decrease in women's evaluation of their relationship quality. It could be that dysfunctionality of the family of origin, especially parents' open conflicts, has more long-term detrimental consequences for men then for women which is line with some of the previous studies (Feng, Giarusso, Bengston, & Frye, 1999; Story, Karney, Lawrence, & Bradbury, 2004). Significant partner effects for women could be due to the socialization process and social roles that emphasize women's focus on the relationships, which makes them more empathetic and more sensitive to their partner's behavior and interpersonal skills. Conclusion: Present research contributes to the field of intimate relationship by emphasizing the importance of parents' conflicts and not divorce in intergenerational transmission of relationship skills and partner interactions, especially for men. Dyadic methodology is a very useful tool for relationship research and provides us with useful information not only in scientific terms, but it also in everyday life and it has practical implications for couples' workshops and other activities that can improve relationship quality.