Service Delivery

Self-injurious, aggressive and destructive behaviour in children with severe intellectual disability: Prevalence, service need and service receipt in the UK.

Ruddick et al. (2015) · Research in developmental disabilities 2015
★ The Verdict

Most UK children with severe ID and serious behavior problems never see a specialist despite clear need.

✓ Read this if BCBAs who write referrals or consult in special-ed schools
✗ Skip if Clinicians focused only on mild behavior in typically developing kids

01Research in Context

01

What this study did

Loraine and colleagues mailed short surveys to UK teachers and parents. They asked about kids aged 3-14 who had severe intellectual disability.

The survey listed three problem behaviors: self-injury, aggression, and property destruction. Adults marked if the child showed each one and if help was needed.

02

What they found

Kids with the most severe behavior were 13 times more likely to need specialist help. Yet they were only twice as likely to actually see a specialist.

In plain numbers, most children who clearly needed behavioral support never got it. Carers spotted more unmet need than teachers did.

03

How this fits with other research

Menezes et al. (2021) asked the same question in the United States. They found youth with autism plus ID had nearly double the unmet mental-health needs. The UK gap is not a one-country problem.

Erturk et al. (2018) pooled 46 small studies and showed behavioral interventions usually work. The missing piece is not effectiveness—it is delivery.

van Timmeren et al. (2016) surveyed US preschoolers with autism years earlier. Even then, most got no behavior therapy. Loraine’s 2015 data say the gap is still wide for the severe-ID group.

04

Why it matters

You already have tools that work. The barrier is reaching the kids who need them most. When you assess a child with severe ID, treat the big behaviors as an urgent referral flag. Offer parent guidance right away and loop in a BCBA if possible. Document the gap in your report—schools and funders need numbers to justify more slots.

Free CEUs

Want CEUs on This Topic?

The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.

Join Free →
→ Action — try this Monday

Check your current caseload for any severe-ID learner without a behavior plan and fast-track a referral

02At a glance

Intervention
not applicable
Design
survey
Population
intellectual disability
Finding
negative
Magnitude
large

03Original abstract

Children with severe intellectual disabilities are at increased risk of presenting with self-injurious, aggressive and destructive behaviour. Severity of these behaviours is an important predictor of psychological and behavioural service use by people with intellectual disabilities. However, studies suggest that the needs of children with intellectual disabilities and their families are not being met. The aims of the present study were to: (1) describe the self-injurious, aggressive and destructive behaviours and subsequent support needs of children with severe intellectual disabilities attending special schools in one major city within the UK, (2) compare teacher and primary carer ratings of behaviour and service need and (3) explore the extent to which the needs of children with intellectual disabilities are being met in terms of contact with relevant specialist services. Questionnaires were completed by teachers and primary family carers of children with a severe intellectual disability. Results indicated that at least 5.3% and 4.1% of children showed at least one behaviour at a clinically significant frequency and management difficulty respectively. Primary carers identified more children with significant behaviour difficulties and support needs than teachers. The odds for children presenting with high levels of the behaviours of interest for having a service need for behavioural intervention were at least 13 times those for children not showing the behaviours, yet only doubled for contact with a specialist relevant health-care professional. These results quantify the magnitude of the substantial gap between level of need and relevant support received.

Research in developmental disabilities, 2015 · doi:10.1016/j.ridd.2015.07.019