Research Cluster

Symptom Screening and Profile Matching

This cluster shows how to spot autism signs in kids who also have ADHD, Down syndrome, or mealtime struggles. It gives quick checklists like SSP and SCQ so you can catch sensory, social, and behavior issues early. You will learn why boys, siblings, and kids with other diagnoses need different questions and who should answer them. Using these tips helps BCBAs start the right plan faster and track progress without guesswork.

257articles
1979–2026year range
5key findings
Key Findings

What 257 articles tell us

  1. In children with Down syndrome, elevated stereotypy and restricted interests signal co-occurring ASD more reliably than ritualistic sameness behaviors.
  2. ADOS-2 emotion and behavior codes for overactivity and anxiety can subtly shift total scores, so account for them when interpreting results.
  3. About one in three high-risk siblings without an ASD diagnosis already shows elevated autism symptoms by age three, supporting routine longitudinal screening.
  4. Autistic teens with intellectual disability can reliably self-report anxiety when verbal and adaptive abilities are sufficient.
  5. SRS-2 scores in typical children share genetic and brain correlates with ASD, so the scale should not be used as a diagnostic stand-in.
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Frequently Asked Questions

Common questions from BCBAs and RBTs

Focus on stereotypy and restricted interests rather than ritualistic sameness, which is less specific in this population. Standardized tools like the DSMSE and informant interviews that account for the DS profile are more informative than unadjusted ASD screeners.

Autistic teens with sufficient verbal and adaptive skills can self-report anxiety reliably. Accommodating parents — parents who help the child understand questions — tend to show closer agreement on physical anxiety symptoms.

Yes. High-risk siblings show elevated symptoms at much higher rates than the general population. Screen longitudinally at multiple time points rather than at a single visit to catch children whose profile changes over time.

Research does not show that going through an autism assessment worsens youth mental health outcomes. Do not delay evaluation out of concern that the process itself will be harmful.

They are often measuring different things. Children may internalize distress without showing it, or may not recognize their own anxiety. Parents may see behavioral signs they interpret as anxiety that the child does not label that way. Both reports add value.