Child, parent and family factors as predictors of adjustment for siblings of children with a disability.
Parent stress and family routines drive sibling well-being more than the sibling's own coping skills.
01Research in Context
What this study did
Giallo et al. (2006) asked what helps brothers and sisters of kids with disabilities stay well. They looked at child traits, parent stress, money, family routines, and how the family talks.
The team studied a mixed group of families. Some kids had autism, others had Down syndrome or cerebral palsy. They used surveys and parent reports to score each factor.
What they found
Parent and family life mattered most. Low income, high parent stress, and weak routines predicted poor sibling mood and behavior better than the sibling's own stress level.
The child's own coping skills added little once family factors were counted. In short, fix the home system first, then teach the sibling tricks.
How this fits with other research
Dumont et al. (2014) seems to disagree. They say money trouble, not disability, explains any sibling gaps. Once they held income steady, siblings looked like any other kids. The clash is only skin-deep: R et al. still show family cash and stress shape outcomes; Eric et al. just prove the disability label alone is not the villain.
Boettcher et al. (2024) backs R et al. in a big way. Their 2024 review of rare-disease families again flags parent stress as the top risk to sibling quality of life. The 2006 paper sits inside their pile of evidence, so the story holds across decades.
Perez et al. (2015) narrows the lens to autism homes and adds a twist. When family stress is high, typical siblings who show mild autism traits actually fare better—almost like the shared traits protect them. This extends R et al. by showing the same family stress rule can flip depending on sibling traits.
Why it matters
Stop screening siblings with long child-only checklists. Instead, ask parents two quick questions: "How stressed are you?" and "Do meals and bedtime happen on time?" If either answer worries you, offer parent stress breaks, chore help, or visual routines before you teach the sibling coping skills. One 15-minute parent support plan can save ten hours of child therapy later.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Add two parent questions about stress and daily routine to your intake form; if either scores high, schedule a parent support session before starting sibling social skills training.
02At a glance
03Original abstract
BACKGROUND: Siblings adjust to having a brother or sister with a disability in diverse ways. This study investigated a range of child, parent and family factors as predictors of sibling adjustment outcomes. METHODS: Forty-nine siblings (aged 7-16 years) and parents provided information about (1) sibling daily hassles and uplifts; (2) sibling coping; (3) parent stress; (4) parenting; and (5) family resilience. Multiple regression techniques were used. RESULTS: It was found that parent and family factors were stronger predictors of sibling adjustment difficulties than siblings' own experiences of stress and coping. Specifically, socio-economic status, past attendance at a sibling support group, parent stress, family time and routines, family problem-solving and communication, and family hardiness-predicted sibling adjustment difficulties. Finally, siblings' perceived intensity of daily uplifts significantly predicted sibling prosocial behaviour. CONCLUSIONS: The results revealed that the family level of risk and resilience factors were better predictors of sibling adjustment than siblings' own experiences of stress and coping resources, highlighting the importance of familial and parental contributions to the sibling adjustment process. The implications of these results for the design of interventions and supports for siblings are discussed.
Journal of intellectual disability research : JIDR, 2006 · doi:10.1111/j.1365-2788.2006.00928.x