Research Cluster

ID Mental Health and Adaptive Screeners

This cluster shows checklists and surveys that help spot sadness, worry, and daily-living skill gaps in adults with intellectual disability. The tools give clear scores so BCBAs can decide if someone needs extra help or a doctor visit. All tests were checked for trustworthiness, but some still need more proof. Picking the right screen saves time and gets people the support they need faster.

240articles
1988–2026year range
5key findings
Key Findings

What 240 articles tell us

  1. Adults with intellectual disability can self-report psychological distress reliably using the 27-item OWLS-ID with a cut-off score of 11.5.
  2. Simplifying the language and format of self-report tools produces more valid responses from adults with mild intellectual disability.
  3. PHQ-9, GAD-7, and WSAS are psychometrically sound for screening depression, anxiety, and functional impairment in adults with ID.
  4. The Dutch MEDS tool is a reliable measure for detecting psychotropic medication side effects in adults with ID.
  5. The DIAB adaptive behavior tool fills a floor-effect gap for people with moderate to profound ID, providing meaningful fine-grained scores.
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Frequently Asked Questions

Common questions from BCBAs and RBTs

Yes, when the tool is designed appropriately and the person has sufficient verbal ability. The OWLS-ID, PHQ-9, and GAD-7 are all validated for use with adults with ID when accessible versions are used.

Use the DITS-SID, a validated caregiver interview specifically designed for this population. Self-report tools are not appropriate for clients with severe ID.

Use a structured tool like the MEDS, which has been validated for adults with ID and guides caregivers through systematic observation of common psychotropic side effects. Do not rely on informal observation alone.

Most tools have a floor effect — they cannot detect meaningful differences at the low end of functioning because they were not designed for this range. The DIAB provides fine-grained scoring that captures real variation for people with moderate to profound ID.

Validated translated versions of grief tools are available for some languages. The PG-13 scale has been validated in Urdu for bereaved adolescents with mild-to-moderate ID. Check for validated translations before using any screener in a language other than the one it was originally developed in.