Ritvo Autism AspergerDiagnostic Scale-Revised(RAADS-R)
This test is a screening tool and not a diagnostic instrument. Please consult with a qualified healthcare professional for a formal evaluation.
Last updated: January 2026 • Based on Hegarty et al. (2025) research
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Meaning of RAADS-R Scores
Score interpretation based on Hegarty et al. (2025) research findings
0-64: Below Threshold
Low likelihood of autism. Scores in this range are typical of non-autistic individuals. The 2025 research confirms that scores below 65 have high specificity for ruling out autism spectrum disorder.
65-105: Neurodivergent Signal
Gray zone with lower specificity. Scores in this range may indicate autism traits, but could also reflect ADHD, anxiety disorders, or trauma-related conditions. Further professional evaluation is strongly recommended to differentiate between conditions.
106-139: Consistent with Autism
Strong indication of autism spectrum traits. Research shows specificity returns to 81% at this threshold. Scores in this range are consistent with an autism spectrum profile and warrant professional diagnostic evaluation.
140+: Pronounced Traits
Very high correlation with autism spectrum disorder. False positives are rare at this level. Individuals scoring 140 or above show pronounced autism traits and should consider seeking formal diagnostic assessment.
Maximum Score: 240
The absolute maximum score attainable on the RAADS-R scale. Each of the 80 questions can score 0-3 points.
Scientifically Validated Assessment
This test is based on peer-reviewed clinical research with 97% sensitivity in detecting autism spectrum traits.
📚 Ritvo, R.A., et al. (2011). The RAADS-R: A Scale to Assist the Diagnosis of Autism Spectrum Disorder in Adults. Journal of Autism and Developmental Disorders, 41(8), 1076-1089.
📚 Hegarty, J.P., et al. (2025). Replication and refinement of RAADS-R score thresholds for improved clinical interpretation.
Frequently Asked Questions
Common questions about the RAADS-R assessment
What is the RAADS-R test?
The RAADS-R (Ritvo Autism Asperger Diagnostic Scale-Revised) is a self-report questionnaire designed to help assess the presence of autistic traits in adults. It serves as a comprehensive screening tool for autism spectrum characteristics.
How accurate is the RAADS-R test?
According to Hegarty et al. (2025), the RAADS-R demonstrates excellent sensitivity (97%) for detecting autism, meaning it rarely misses true cases. However, specificity varies by score range: scores below 65 reliably rule out autism, while scores between 65-105 have lower specificity and may reflect other conditions like ADHD or anxiety. Scores above 106 show 81% specificity, and scores above 140 have very high specificity with rare false positives. For definitive diagnosis, always consult a qualified healthcare professional.
Is the RAADS-R test reliable?
Yes, the RAADS-R is one of the most reliable self-report autism screening tools available for adults. The 2025 research by Hegarty et al. confirms its strong psychometric properties with 97% sensitivity. The test shows excellent test-retest reliability and internal consistency. However, interpretation requires understanding that different score ranges have different clinical implications - the 65-105 range particularly requires careful professional evaluation to distinguish autism from other neurodivergent conditions.
How to take the RAADS-R test?
The RAADS-R test is typically a self-report questionnaire. It can be administered online or in a paper format. To take the test, one can follow the instructions provided with the questionnaire.
Is the RAADS test accurate and reliable?
Similar to the RAADS-R, the accuracy and reliability of the RAADS test may vary. Consulting with a healthcare professional for a comprehensive evaluation is recommended.
How to interpret RAADS-R test results?
Interpretation of RAADS-R test results should be done cautiously. It is advisable to seek guidance from a healthcare professional who can provide a thorough analysis and interpretation.
Is the RAADS-R autism test accurate?
The accuracy of the RAADS-R autism test can vary. While it can be a useful screening tool, a definitive diagnosis should be made by a qualified healthcare professional.
Is there a RAADS-R test for ADHD?
The RAADS-R is primarily designed for assessing autistic traits and is not specifically tailored for ADHD. Different assessments are available for ADHD diagnosis, and consulting with a healthcare professional is recommended.
How long is the RAADS test, and how many questions are on it?
The RAADS-R test typically takes 20-30 minutes to complete. It includes a comprehensive set of questions designed to assess various aspects of autistic traits. It's important to answer all questions thoughtfully for the most accurate results.
Where can I take the RAADS-R test online?
The RAADS-R test is available online on our website and others. It is essential to ensure that the platform is reputable and that results are interpreted by a healthcare professional for accuracy.
Is the RAADS-R test free?
Yes! The RAADS-R test is completely free on our website. While some platforms may charge for access, we believe in making this screening tool accessible to everyone who needs it.
How to read RAADS-R test results?
Reading RAADS-R test results requires careful interpretation. Seeking guidance from a healthcare professional is recommended for a comprehensive understanding of the results.
How to score the RAADS-R paper test?
Scoring the RAADS-R paper test involves following the scoring guidelines provided with the questionnaire. It is advisable to consult with a healthcare professional for accurate interpretation.
What does my RAADS-R score actually mean?
Your RAADS-R score indicates the likelihood of autism spectrum traits based on validated research. According to Hegarty et al. (2025): scores 0-64 suggest low likelihood of autism; 65-105 is a gray zone that may indicate autism or other neurodivergent conditions like ADHD or anxiety (professional evaluation recommended); 106-139 is consistent with autism with 81% specificity; and 140+ indicates pronounced autism traits where false positives are rare.
Can the RAADS-R test detect ADHD or other conditions?
The RAADS-R is specifically designed to assess autism spectrum traits, not ADHD. However, Hegarty et al. (2025) research reveals important findings: scores in the 65-105 range have lower specificity because traits measured may overlap with ADHD, anxiety disorders, or trauma-related conditions. If you score in this range, professional evaluation can help differentiate between autism and other neurodivergent conditions.
Can I get a false positive on the RAADS-R test?
Yes, false positives are possible, particularly in certain score ranges. Based on 2025 research: scores below 65 have very high specificity (few false positives). The 65-105 range has lower specificity - elevated scores here may reflect ADHD, anxiety, depression, or trauma rather than autism. Above 106, specificity increases to 81%. Above 140, false positives become rare.
What's the difference between RAADS-R and the AQ (Autism Quotient) test?
Both are validated autism screening tools, but they differ significantly. The RAADS-R has 80 questions with a unique 4-point scale asking about traits 'now' versus 'when younger,' providing developmental context. It shows 97% sensitivity. The AQ has 50 questions with simpler agree/disagree responses. The RAADS-R provides dimensional scores across four domains, while the AQ gives a single total.
Why might my RAADS-R score be higher than expected?
Several factors can contribute to elevated scores: (1) You may have undiagnosed autism - many adults are identified later in life. (2) Overlapping conditions like ADHD, social anxiety, or trauma can elevate scores, particularly in the 65-105 range. (3) Current mental health status affects responses. (4) High self-awareness may lead to more 'symptomatic' responses. Consider discussing results with a professional.
Is the RAADS-R test accurate for women and those who mask autism traits?
The RAADS-R was specifically designed to detect autism in adults who may have developed sophisticated masking strategies - a pattern more commonly seen in women. Its 'now vs. when younger' question format helps capture underlying traits even when surface behaviors have been modified. However, highly effective maskers might still score in the 65-105 'gray zone' and benefit from professional evaluation.
What is the recommended RAADS-R cutoff score for autism?
The original 2011 study suggested a cutoff of 65, but Hegarty et al. (2025) provides more nuanced guidance with four clinically meaningful ranges: Below 65 indicates low autism likelihood. The 65-105 range is a gray zone with lower specificity. Scores of 106+ show 81% specificity. Scores of 140+ show pronounced traits with rare false positives. Modern interpretation considers which range your score falls into.
Can anxiety, depression, or trauma affect my RAADS-R score?
Yes, mental health conditions can influence scores. Hegarty et al. (2025) identified that scores in the 65-105 range may reflect anxiety disorders, depression, or trauma-related conditions rather than (or in addition to) autism. Social anxiety can cause difficulties similar to autistic traits; trauma can affect sensory processing. If you have a history of these conditions, a professional can help determine the best explanation for your experiences.
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