Overview
The SRS-2 is a 65-item rating scale that quantitatively measures the severity of autism-spectrum social impairment across the lifespan, with forms for preschool, school-age, and adults.
Use cases
Trait quantification in genetic studies, sibling research, and treatment response.
Assessment intelligence
- Score range
- 0 – 195
- Direction
- Higher = worse
- Scoring method
- Sum
- Time to score
- ~15 min
- Social Awareness
- Social Cognition
- Social Communication
- Social Motivation
- Restricted Interests/Repetitive Behavior
| Severity | Threshold | Interpretation |
|---|---|---|
| Normal | T<60 | Within normal limits |
| Mild | T 60-65 | Mild deficiencies in social behavior |
| Moderate | T 66-75 | Clinically significant deficiencies |
| Severe | T≥76 | Severe deficiencies strongly associated with ASD |
T-scores normed by sex and respondent.
Editorial notes
Total score alpha > 0.94; sensitive to subclinical traits in family and population studies.
Available languages
Validation studies (2)
- SRS-2 quantitative trait sensitivity in family studiesConstantino JN, Gruber CP. · Journal of the American Academy of Child & Adolescent Psychiatry · 2012DOI: 10.1097/CHI.0b013e3181b8be77
- SRS-2 adult form psychometric evaluationBolte S, Poustka F. · Autism Research · 2013DOI: 10.1002/aur.1267
Related assessments
Gold-standard semi-structured observation for ASD diagnosis across the lifespan.
CARS-2Clinician rating of autism severity, with a high-functioning variant.
M-CHAT-R/FTwo-stage parent-report autism screener for toddlers.
ADI-RStandardized parent interview pairing with ADOS-2 for ASD diagnosis.
RAADS-RThe Ritvo Autism Asperger Diagnostic Scale – Revised (RAADS-R) is an 80-item self-report questionnaire designed to identify autism in adults (18 years or older). Developed by Ritvo et al. (2011) as a revision of the original RAADS, it was created to address the growing need for validated assessment tools specifically designed for adult populations, where autism presentations may differ from those typically seen in childhood.