Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R)

The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R) is a tool used to assist the diagnosis of autism spectrum disorders in adults. It’s designed to measure the presence and severity of autism-related symptoms. This self-test provides a preliminary measure and is not intended as a diagnostic tool

RAADS-R Testing

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Meaning of RAADS–R scores

25No indications of autism.
50Presence of some traits associated with autism, though it’s unlikely to be autism (note: some individuals with autism may have scores as low as 44).
65Base threshold for potential autism consideration.
90Enhanced signs of autism, though scores this high can also be found in non-autistic individuals.
130Average score among individuals with autism, indicating a strong likelihood of autism.
160Overwhelming evidence pointing towards autism.
227Highest score recorded by individuals with autism in the foundational RAADS-R study by Ritvo.
240The absolute maximum score attainable on the RAADS-R scale.

Frequently Asked Questions

The accuracy of the RAADS-R test can vary, and its reliability may depend on various factors. It is essential to use it as a screening tool rather than a diagnostic tool. For a definitive diagnosis, consulting with a healthcare professional is recommended.

The reliability of the RAADS-R test may vary, and its results should be interpreted cautiously. It is advisable to consult with a qualified healthcare professional for a thorough evaluation.

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.

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.

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.

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.

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.

The length of the RAADS test and the number of questions may vary. Typically, it includes a set of questions that individuals answer to assess autistic traits.

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.

The availability of the RAADS-R test for free may vary. Some platforms may offer it as a free resource, while others may require payment. It's essential to use reliable and validated sources. On our website its free!

Reading RAADS-R test results requires careful interpretation. Seeking guidance from a healthcare professional is recommended for a comprehensive understanding of the results.

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.

Important Precaution

Important Precaution

This test is a self-assessment tool and not a definitive diagnostic instrument. The results should be used as a reference and not as a final diagnosis. Autism spectrum disorders can only be diagnosed by qualified professionals. If your results indicate the possibility of an autism spectrum disorder, or if you have concerns about your mental well-being, please seek guidance from a medical professional or specialist.


Ritvo, R. A., Ritvo, E. R., Guthrie, D., Ritvo, M. J., Hufnagel, D. H., McMahon, W., … & Eloff, J. (2011). The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R): A Scale to Assist the Diagnosis of Autism Spectrum Disorder in Adults: An International Validation Study. Journal of Autism and Developmental Disorders, 41(8), 1076-1089. View Source