The authors review the literature on sibling relationships in childhood and adolescence, starting by tracing themes from foundational research and theory and then focusing on empirical research during the past 2 decades. This literature documents siblings’ centrality in family life, sources of variation in sibling relationship qualities, and the significance of siblings for child and adolesce…
Parental differential treatment has been linked to individual well-being and sibling relationship quality in childhood, adolescence, and middle adulthood but has not been examined in young adulthood. Data were collected from 151 pairs of young adult siblings (N = 302, M age = 23.90, SD = 5.02). Two siblings in each family reported on treatment from mothers and fathers, depressive symptoms, an…