Frequently Asked Questions About the RAADS-R Test
The RAADS-R (Ritvo Autism Asperger Diagnostic Scale-Revised) test is a professional screening tool for autism spectrum traits in adults. Here are answers to the most common questions about this assessment tool.

Basic Questions About RAADS-R
What is the RAADS-R test?
The RAADS-R is a self-report questionnaire designed to help identify autism spectrum traits in adults. It consists of 80 questions that evaluate four key areas: social relatedness, language, sensory-motor function, and circumscribed interests. This test was developed by Dr. Ritvo and colleagues and has been validated through extensive research [^1].
Who should take the RAADS-R test?
The test is specifically designed for:
Adults aged 16 and above
People with average or above-average intelligence (IQ ≥80)
Individuals who suspect they might have autism traits but haven't received a formal diagnosis
Those referred by healthcare providers for autism evaluation
How long does the test take?
Most people complete the RAADS-R in 20-30 minutes, though there's no strict time limit. It's more important to answer thoughtfully than quickly.
Scoring and Results
What do RAADS-R scores mean?
The total scores range from 0 to 240. Here's a general interpretation:
0-25: Few or no autistic traits detected
26-64: Some autistic traits present
65-130: Significant autistic traits present
131-160: Strong indication of autism
161-190: Very strong indication of autism
191-240: Extremely strong indication of autism
What's considered a "significant" score?
A score of 65 or higher is considered significant and may indicate the presence of autism traits. In research studies, no non-autistic participants scored above 64 [^2].
Technical Aspects
How is the test structured?
The RAADS-R evaluates four main areas:
Social Relatedness (39 questions)
Language (7 questions)
Sensory-Motor (20 questions)
Circumscribed Interests (14 questions)
How accurate is the RAADS-R?
Research shows the RAADS-R has:
97% sensitivity (ability to identify autism)
100% specificity (ability to identify non-autism)
High test-retest reliability (.987)
Important Considerations
Can the RAADS-R diagnose autism?
No, the RAADS-R is a screening tool, not a diagnostic instrument. While it can indicate the presence of autism traits, only qualified healthcare professionals can provide an official diagnosis through comprehensive evaluation.
Should I take the test multiple times?
While you can take the test multiple times, it's designed to have high test-retest reliability. If you choose to retake it, wait a significant period and answer based on your genuine experiences rather than trying to achieve a specific score.
What should I do after taking the test?
If you score 65 or higher:
Consider consulting with a healthcare professional
Document your experiences and challenges
Consider taking other validated autism assessments
Discuss the results with your healthcare provider
References
[^1]: Ritvo et al. (2011). The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R): A Scale to Assist the Diagnosis of Autism Spectrum Disorder in Adults. Journal of Autism and Developmental Disorders, 41(8), 1076-1089. [^2]: Andersen et al. (2011). The Swedish version of the Ritvo Autism and Asperger Diagnostic Scale: Revised (RAADS-R). Journal of Autism and Developmental Disorders, 41(12), 1635-1645.
Note: This information is for educational purposes only and should not be used as a substitute for professional medical advice.