The siblings relationship of adolescents with and without intellectual disabilities.
Teen warmth and conflict rules flip when one sibling has ID, so target externalizing behavior and don’t assume opposite-sex chemistry will help.
01Research in Context
What this study did
Begum et al. (2011) compared teen siblings. One group had a brother or sister with intellectual disability. The other group had only typically developing siblings.
They asked each teen about warmth, power, and conflict in the sibling bond. Then they looked for patterns tied to sex, birth order, and behavior problems.
What they found
Warmth was higher in opposite-sex pairs, but only when no disability was present. Power patterns also differed: first-born teens usually boss later-borns, yet this rule vanished when the younger sibling had ID.
Conflict linked to outside behavior problems in the ID group, while it linked to inside worries in the typical group.
How this fits with other research
Jones et al. (2010) saw almost no warmth gap in adults, hinting that teen years are the toughest patch. Matson et al. (2013) later added that talking skill does not change warmth, but it does boost helping acts.
Hilton et al. (2010) showed that behavior problems, not the ID label itself, drive sibling stress. Gazi’s teen data echo this: watch externalizing behavior if you want to lower fights.
Byra et al. (2025) followed the story into adulthood. Good sibling ties then predict life satisfaction, so fixing teen conflict may pay long-term dividends.
Why it matters
If you run social-skills groups or family training, tailor the plan to the dyad. Opposite-sex pairs with ID may need extra warmth building, since the natural boost disappears. Track externalizing behavior like yelling or hitting; lowering it will likely shrink sibling fights. Finally, teach both siblings shared leisure routines; the adult data say the bond they build now can guard against later loneliness.
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02At a glance
03Original abstract
The sibling relationship of adolescents with and without intellectual disabilities was examined. Participants were 70 sibling dyads--each dyad was comprised of one 12-year old adolescent with (N=23) or without intellectual disabilities (N=47). Sibling relationships, behavior problems, and social skills were assessed using mother reports. Results revealed three findings. First, for typically developing adolescents, mothers reported more warmth in the sibling relationship for opposite sex dyads. For adolescents with intellectual disabilities, mothers reported more warmth in the sibling relationship for same-sex dyads. Second, for typically developing adolescents, mothers reported more status/power differences when the sibling was younger than when the sibling was older. For adolescents with intellectual disabilities, birth order did not affect status/power in the sibling relationship. Third, for typically developing adolescents, conflict was related to internalizing behavior problems. For adolescents with intellectual disabilities, conflict was related to externalizing behavior problems. Implications, limitations, and future directions are discussed.
Research in developmental disabilities, 2011 · doi:10.1016/j.ridd.2011.01.056