Adolescent Educational Outcomes in Blended Families: Evidence from Swedish Register Data

Using Swedish register data, this article examines the association between having experienced the birth of a younger half-sibling and two educational outcome measures among Swedish 9th graders from 1998 to 2007. The data set, with the full population of 9th graders (N = 874,812), enables us to differentiate between adolescents with maternal as well as paternal half-siblings. The results show that adolescents in postseparation families with half-siblings have lower overall grades and are less likely to be eligible for school continuation after 9th grade than those without half-siblings. The results point to interesting gender patterns both by the sex of the child and whether the half-sibling is maternal or paternal.