Cross-lagged panel designs were used to examine longitudinal and potential (bi)directional relationships between primary caregiver reported sibling relationship quality and the behaviors of children with intellectual disability (n = 297) and their closest in age siblings. The behavioral and emotional problems of the child with intellectual…

We explored whether reports of three dyadic relationships (marital/partner, parent-child, sibling) were related to perceptions of family functioning in 467 mothers of children with intellectual disability aged 4-15 years. Structural equation models were fitted to examine associations between relationship indicators and family functioning. The…

Even though family plays a significant role in the lives of people with intellectual disability, little research has included their own views about their families. This study examined how 138 people with mild intellectual disability describe their family group, with a focus on the reciprocal nature of the emotional support in relationships with…

The contribution of childhood sibling relationships to adult sibling relationships and intention to provide care was investigated in a sample in which one member of each dyad had Down syndrome. Thirty-nine adult siblings of an adult with Down syndrome who had participated in a study of sibling relationships in childhood/adolescence provided data…

Siblings of brothers or sisters with intellectual and developmental disabilities (IDD) are important but understudied family members. As many previous studies have relied on parent report of sibling outcomes, the use of sibling self-report is an important addition to the research. This study assessed the feelings of adolescent siblings toward…

This study examined communication interaction patterns when one sibling had a developmental disability as well as the role of communication skills in sibling relationship quality. Thirty sibling dyads were categorized into one of three communication status groups: emerging, context-dependent, and independent communicators. Independent…

Dyads of siblings in which the younger sibling had an intellectual disability (ID, n = 25) were videotaped interacting. The ID group was compared with typically developing sibling dyads matched on mental age (n = 25) and chronological age (n = 25). We observed the mediation strategies, activation, and antimediation behaviors of older siblings and…

With the growing life expectancy for individuals with intellectual and developmental disabilities, siblings will increasingly assume responsibility for the care of their brother or sister with intellectual and developmental disabilities. Using a 163-item survey completed by 757 siblings, the authors identified factors related to future caregiving…

A significant concern of parents and professionals is that adults with intellectual and developmental disabilities will go without regular educational-vocational activities. The authors examined predictors of such inactivity in individuals with intellectual and developmental disabilities, as well as how inactivity related to their sibling's…

The impact on everyday life for siblings of children with intellectual disability or typical development was examined. Participants were families of children with intellectual disability (n = 39) or typical development (n = 75). Child behavior problems and sibling impact were assessed at child ages 5, 6, 7, and 8. Results indicate that siblings of…

This study examined aspects of the sibling relationship that predicted helping profession choice and volunteerism in siblings of individuals with mild intellectual deficits at 3 points in adulthood: their mid-30s, early 50s, and mid-60s. The 393 respondents were from the Wisconsin Longitudinal Study, a prospective, longitudinal study following…

We examined sibling relationships for children and adolescents with intellectual disability and assessed implications for their social functioning. Targets (total N = 212) had either intellectual disability, a chronic illness/physical disability, or no disability. Nontarget siblings reported on relationship quality, sibling interactions were…