Adaptive functioning and behaviour problems in relation to level of education in children and adolescents with intellectual disability.
Behavior problems—not IQ—decide special-ed placement for kids with mild ID, so target adaptive and behavior goals first.
01Research in Context
What this study did
Nevin et al. (2005) looked at kids with mild intellectual disability. They asked: do behavior problems and daily-living skills predict which special-ed classroom a child lands in?
Parents and teachers filled out checklists about adaptive skills and problem behavior. The team then saw where the school placed each child.
What they found
Autistic behavior problems dragged adaptive scores down. Lower adaptive scores, not IQ scores, lined up with placement in lower-level classes.
In short, disruptive or rigid behaviors kept kids in more restrictive rooms even when their IQ was similar to peers in higher rooms.
How this fits with other research
Richman et al. (2001) and Hogg et al. (1995) already showed that autism symptoms hurt daily living skills more than IQ does. A et al. move the lens to school placement and find the same story: behavior, not IQ, drives the decision.
McGeown et al. (2013) extend the timeline. They tracked teens with special-ed help into adulthood and found teenage behavior problems, not IQ, predicted poor adult functioning. The message holds from childhood to adult life.
An apparent contradiction pops up with Bürki et al. (2021). Their German parent survey said lower IQ, not autism severity, predicts who gets special-ed support. The gap is method: Lara used parent reports of severity; A et al. used direct behavior checklists. Schools act on visible behaviors, not parent labels, so both papers can be true.
Why it matters
When you write an IEP, spotlight adaptive goals and behavior support, not just cognitive scores. A child with mild ID and high behavior needs may look “high functioning” on paper yet still need a smaller classroom. Push for FBA-based BIPs and daily-living objectives; these can open the door to less restrictive settings faster than raising test scores.
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02At a glance
03Original abstract
BACKGROUND: The interrelationship between adaptive functioning, behaviour problems and level of special education was studied in 186 children with IQs ranging from 61 to 70. The objective was to increase the insight into the contribution of adaptive functioning and general and autistic behaviour problems to the level of education in children with intellectual disability (ID). METHODS: Children from two levels of special education in the Netherlands were compared with respect to adaptive functioning [Vineland Adaptive Behavior Scales (VABS)], general behaviour problems [Child Behavior Checklist (CBCL)] and autistic behaviour problems [Autism Behavior Checklist (ABC)]. The effect of behaviour problems on adaptive functioning, and the causal relationships between behaviour problems, adaptive functioning and level of education were investigated. RESULTS: Children in schools for mild learning problems had higher VABS scores, and lower CBCL and ABC scores. The ABC had a significant effect on the total age equivalent of the VABS in schools for severe learning problems, the CBCL in schools for mild learning problems. A direct effect of the ABC and CBCL total scores on the VABS age equivalent was found, together with a direct effect of the VABS age equivalent on level of education and therefore an indirect effect of ABC and CBCL on level of education. CONCLUSIONS: In the children with the highest level of mild ID, adaptive functioning seems to be the most important factor that directly influences the level of education that a child attends. Autistic and general behaviour problems directly influence the level of adaptive functioning. Especially, autistic problems seem to have such a restrictive effect on the level of adaptive functioning that children do not reach the level of education that would be expected based on IQ. Clinical implications are discussed.
Journal of intellectual disability research : JIDR, 2005 · doi:10.1111/j.1365-2788.2005.00711.x