Siblings often oversee the well-being of an adult with autism spectrum disorder (ASD). The current study contributes to the literature by examining correlates of support provided to siblings in young adulthood in the context of the broader autism phenotype (BAP). Young adults (n = 866; M[subscript age] = 25.43, SD = 2.54; 55% female) reported on…

Prior research on the sibling relationship in the context of autism spectrum disorder (ASD) has included only one sibling per family. We used multi-level modeling to examine aspects of the sibling relationship in 207 adults who have a brother or sister with ASD from 125 families, investigating variability in sibling relationship quality and…

The purpose of this study was to test a diathesis-stress model of well-being for siblings who have a brother or sister with an autism spectrum disorder (ASD). Data were collected from 57 adolescents and their mothers. Sisters reported higher levels of depressive and anxiety symptoms than brothers. Having a family history of ASDs was associated…

We investigated sibling relationships and wellbeing in adolescents and adults with a sibling with an autism spectrum disorder (ASD). Adolescents engaged in more shared activities than did adults. Adolescents reported greater social support, greater use of emotion-focused coping strategies, and less use of problem-focused coping than adults. In…

Differences and similarities between 245 brothers and sisters of adults with mental retardation in the sibling relationship were examined. Sisters scored higher in the caregiving, companionship, and positive affect aspects of the sibling relationship. Sibling involvement increased over time, but was dependent upon changes in maternal health.…

In this article, we review the literature on siblings of individuals with autism spectrum disorders (ASD) from a lifespan developmental perspective, from infancy through adulthood, focusing on the sibling relationship and sibling well-being. We situate this review within the larger body of research on siblings of individuals with developmental…