Abstract
The aim of the study was to demonstrate how parenting style and aggression are related to the quality of relationships in close relationships. Examined groups consisted male residents of a juvenile detension centres and students aged 18-20. Results have confirmed the differences between boys in juvenile detension centres and their peers in attachment styles and in the level of aggression and intimacy. Significant correlations between attachment and quality of relations in close relationships have existed only in the control group, while among boys in juvenile detension centres - between aggression and quality of relation in close relationship. In this group, there was no significant correlations between attachment styles and quality of relations in close relationships.