Abstract
Under the Second Demographic Transition, alternative forms of living arrangement are on the rise. The aim of this article is to compare quality of life in children living in married and cohabiting families. We present the results of representative research conducted in Slovakia in 2018 (N = 1,010 respondents). We tested whether children brought up in traditional married families had better material resources and healthcare, fewer behavioural problems, better peer relations and spent more leisure time with their parents than children brought up by cohabiting parents. We also investigated whether number of children in the family and net monthly household income affected the children’s quality of life. The results show that there were almost no differences in quality of life between children brought up by married and by cohabiting parents and that number of children in the family and level of net monthly household income affected only the child’s material resources.