Abstract (eng)
The link between stress and relationship outcomes has been confirmed on multiple occasions as significant correlations between high stress levels and low relationship quality as well as diminished sexual activity could have been found. Nevertheless, little is known about the direction of this relationship as well as about exact mechanisms that might moderate this association. Relationship quality has been discussed as a potential moderator between stress and sexual activity. Since research in this field is inclusive, more research is required to establish a clear relationship between these three constructs. Therefore, the present thesis aims at investigating the effects of stress on relationship quality and sexual activity while considering possible gender discrepancies. The research was conducted by using an ambulatory assessment over two weeks. In this study, participants had to answer questions seven times a day using an iPod. The sample consisted of 18 women and 12 men who were physically and mentally healthy heterosexuals in a relationship. The results show a significant effect of stress on relationship quality, but, contrary to expectations, not on sexual activity. Furthermore, a moderating effect of relationship quality on the associations between stress and sexual activity was found. However, this moderating effect was only significant for women. Due to small effect sizes, more research is required. Future research may also consider other factors in this context to create a better understanding of how stress affects couples and their sexual life.