Autism and developmental assessment
Autism Diagnostic Observation Schedule, Second Edition (ADOS-2)
Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) — administration and scoring reference.
Reference information · Official-form reference
- Last content update
- 2026-10-26
- Clinical review
- Not independently reviewed
- Source jurisdiction
- See individual sources
- Coverage
- Official-form reference
| Field | Instrument context |
|---|---|
| Version | ADOS-2; standardized module selected by language/development |
| Population | Children/adolescents; verify age range for selected form |
| Respondent | Trained clinician |
| Purpose | Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) — administration and scoring reference. |
Administration
Use the licensed kit, standardized activities and trained administration. Select the module using the manual.
Scoring method
Standardized observations and module-specific algorithms; cannot replace with questionnaire.
Interpretation & limitations
- Apply the exact module algorithm and integrate the observation with developmental history.
- Interpret the findings alongside the clinical interview, functioning, history and relevant physical assessment.
- A questionnaire cannot replace this observation. A module classification alone does not determine a diagnosis.
- Use the original instrument and manual for item wording, rating anchors, missing-data rules and any normative conversions. This reference does not establish a diagnosis or select treatment.