Research Cluster

Self-Injury Assessment and Subtype Analysis

This cluster shows how to figure out why people with intellectual disabilities hurt themselves. It teaches how to test if the behavior is for attention, pain relief, or automatic reinforcement. Knowing the reason helps pick safe, kind treatments that really work. BCBAs use these tools to stop injuries before they get worse.

96articles
1980–2025year range
5key findings
Key Findings

What 96 articles tell us

  1. Self-injury in autistic youth comes in distinct topographies — biting, head hitting, skin picking, and others — each linked to different child characteristics and functions.
  2. Protective procedures during functional analysis are now used in about 70 percent of studies, making FA safer than it was a decade ago.
  3. Wearable accelerometers can reliably detect self-hits during FA and serve as a useful check on your video data.
  4. Caregiver-delivered treatments at home produce outcomes just as large as clinic-based clinician delivery, according to a recent meta-analysis.
  5. Automatically maintained self-injury can re-emerge in new settings after treatment gains, so generalization planning is essential.
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Frequently Asked Questions

Common questions from BCBAs and RBTs

Use protective equipment like helmets, arm guards, or padding during the FA. Studies show that safety measures are now standard practice and do not prevent you from getting a clear functional pattern.

Automatically maintained self-injury produces sensory reinforcement independent of other people. You can often identify it by watching behavior during play and no-interaction conditions — if it stays high in both, automatic reinforcement is likely.

Yes. A recent meta-analysis found caregiver-delivered treatments produce results just as large as clinician-delivered ones. Training caregivers well is one of the most effective things you can do.

This is called renewal and it happens when clients move to settings where treatment was not in place. Planning generalization across people, settings, and situations from the start is the best way to prevent it.

No. Research shows that biting, head hitting, head banging, and skin picking each link to different factors. Assess the function for each topography separately before writing a treatment plan.