Is the raads-r test accurate

Is the raads-r test accurate


The RAADS-R (Ritvo Autism Asperger Diagnostic Scale-Revised) test is a widely recognized and validated tool for diagnosing and assessing Autism Spectrum Disorder (ASD). Developed by Eric Veit Ritvo and his colleagues, this self-report questionnaire consists of 80 items that explore various aspects of social communication, sensory sensitivity, and repetitive and restricted behavior patterns commonly associated with autism.

The test has been found to have high accuracy in distinguishing between individuals with ASD and those without a DSM-IV-TR diagnosis or with a different DSM-IV-TR diagnosis. In research studies, the RAADS-R has shown a sensitivity of 97% and a specificity of 100%. These impressive figures indicate that the test is highly effective at correctly identifying individuals who likely have ASD while minimizing the likelihood of false positives [4].

It is worth noting that the RAADS-R is designed to be administered by trained professionals in a clinical setting. While it is available as an online test, its validity and reliability are best ensured when used under the guidance of a qualified healthcare provider [2].

The test provides an overall score that reflects the individual’s likelihood of having ASD, indicating the presence and severity of autistic traits. The RAADS-R also generates subscale scores for various domains, such as social relatedness, language and communication, sensory/motor patterns, and circumscribed interests. These subscale scores can offer further insights into specific areas of the individual’s functioning, providing a more comprehensive picture of their autistic characteristics [2].

While the overall score is generally considered more reliable than individual subscale scores, the subscales can still provide valuable information for those who want a deeper understanding of their traits and areas where they may experience challenges or differences [2].

It is important to note that the RAADS-R test is just one tool among many that contribute to a comprehensive assessment of ASD. A diagnosis of autism should always be made by a qualified professional who considers multiple sources of information, including clinical observation, developmental history, and other relevant assessments.

Limitations or potential criticisms of the RAADS-R test

The RAADS-R test, like any other assessment tool, has certain limitations and possible criticisms that should be considered. Some of these include:

  1. Self-report nature: The RAADS-R test relies on individuals accurately reporting their behaviors and experiences. However, self-report measures may be influenced by factors such as social desirability bias, memory recall, or subjective interpretation, which could affect the validity and reliability of the results.
  2. Limited cultural and linguistic diversity: The RAADS-R test has primarily been developed and validated in English-speaking populations, which may limit its applicability and accuracy in culturally and linguistically diverse populations. Translation and cultural adaptation are crucial to ensure the test’s relevance and accuracy across different populations.
  3. False positives and negatives: While the RAADS-R test has shown high sensitivity and specificity in research studies, there is still the possibility of false positives (indicating ASD when it may not be present) and false negatives (failing to identify ASD when it is present). The test should be part of a comprehensive clinical assessment, considering other diagnostic tools and professional judgment.
  4. Potential for overdiagnosis or misinterpretation: RAADS-R scores should be interpreted cautiously. A high score on the test does not necessarily mean an individual has ASD, and a low score does not exclude the possibility of ASD. The test with other clinical information and assessments should be considered to avoid overdiagnosis or misinterpretation.
  5. No diagnostic tool stands alone: The RAADS-R test should not be used as the sole determinant for diagnosing ASD. A comprehensive evaluation should involve multiple sources of information, including clinical observation, developmental history, and other assessments, to arrive at an accurate diagnosis.
  6. Professional administration and interpretation: While the RAADS-R test is available online, its optimal use and accurate interpretation are best achieved under a qualified healthcare professional or clinician experienced in diagnosing ASD. The involvement of a professional ensures appropriate administration, interpretation, and integration of the test results with other clinical information.

It is important to recognize these limitations and use the RAADS-R test judiciously as part of a thorough clinical assessment for diagnosing Autism Spectrum Disorder.

In summary, the RAADS-R test is a reputable and widely used tool for assessing the presence of Autism Spectrum Disorder. While its online availability may be tempting for some individuals, it is crucial to remember that proper administration and interpretation of the test are best done within a clinical context under the guidance of a qualified professional.


Is the RAADS-R test used for diagnosis?

The RAADS-R test is a diagnostic tool for assessing Autism Spectrum Disorder. It is a self-report questionnaire that helps scrutinize various facets of social communication, sensory sensitivity, and repetitive and restricted behavior patterns, which are common traits in individuals with autism. However, it is generally used with other diagnostic tools and methods for a comprehensive understanding and diagnosis.

What test determines autism spectrum?

There are several tests and assessments used to diagnose Autism Spectrum Disorder. Apart from the RAADS-R test, other standard tools include:

  • ADOS (Autism Diagnostic Observation Schedule): A semi-structured assessment of communication, social interaction, and play.
  • ADI-R (Autism Diagnostic Interview-Revised): A structured interview to diagnose autism and distinguish it from other developmental disorders.
  • CARS (Childhood Autism Rating Scale): Helps to identify the presence of autism in children and determine the severity of symptoms.
  • M-CHAT (Modified Checklist for Autism in Toddlers): A screening tool used to assess the risk of autism in toddlers aged 16 to 30 months.

Each of these tests has its criteria and focuses on various aspects of the individual’s behavior and development.

Can you self-diagnose the autism spectrum?

While tools are available online, including the RAADS-R test, for individuals to self-assess their traits related to the autism spectrum, self-diagnosis is not recommended. A formal diagnosis should always be conducted by a qualified healthcare provider or a clinical psychologist with experience diagnosing ASD. They will use a combination of tests, clinical observations, and developmental history to diagnose accurately. Self-diagnosis can be a starting point for understanding oneself better, but it should not replace a formal diagnostic assessment.

RAADS-R Test Scoring System

Score RangeInterpretation
0-65Low likelihood of ASD: Scores in this range suggest a low likelihood of Autism Spectrum Disorder. However, it is important to note that a low score does not entirely rule out the possibility of ASD.
66-134Moderate likelihood of ASD: Individuals scoring in this range may exhibit moderate traits associated with ASD. It is recommended to seek a comprehensive evaluation from a healthcare provider for a more accurate assessment.
135-195High likelihood of ASD: Scores in this range indicate a high likelihood of Autism Spectrum Disorder. It is advisable to consult with a healthcare provider for a detailed assessment and potential diagnosis.
196 and aboveVery high likelihood of ASD: Individuals with scores in this range are very likely to have Autism Spectrum Disorder. Seeking a formal diagnosis from a qualified healthcare provider is strongly recommended.

Expert Advice on Autism Diagnosis

A diagnosis of autism should always be conducted by a qualified professional who considers multiple sources of information, including clinical observation and developmental history. The RAADS-R test is part of a comprehensive assessment of ASD and should be used judiciously to aid in the diagnostic process.


[1] “Below are general interpretations of different scores on the RAADS-R test. RAADS-R score of 25: You do not meet the criteria for autism. RAADS-R score of 50: You possess some autism traits but do not likely have autism. RAADS-R score of 65: You are at the minimum score of autism. RAADS-R score of 90: You demonstrate strong …” URL:

[2] “The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R) is a diagnostic instrument that is intended to be administered by a professional in a clinical setting. … The creators of the test emphasize that the overall score is more accurate than any of the subscale scores alone, but the subscales are still informative if you’re curious …” URL:

[3] “A RAADS-R score of 65 points or greater indicates that it is ‘highly likely’ that the respondent would meet the criteria for Asperger’s Syndrome after all testing while a score of 90 points and higher indicates that a diagnosis could be made ‘with confidence’.”. 🤷🏻‍♂️. 2 more replies.” URL:

[4] “Conclusions. The RAADS-R proved to be highly accurate in discriminating between subjects with ASD and those without a DSM-IV-TR diagnosis and with another DSM-IV-TR diagnosis (sensitivity = 97%, specificity = 100%, test-retest reliability = .987, accuracy = 98.5%,).No difficulties were reported in administration even though subjects were evaluated at nine medical centers on three continents.”


[5] “The standard screening test for Asperger’s is the AQ combined with the EQ. You have to take both. (This is Baron-Cohen’s method.) The creators of RAADS-R claim that it is diagnostic when administered in a clinical setting. (And there is no diagnosis without being in a clinical setting, so QED.)” URL:

[6] “Dissociative identity disorder (DID), formerly known as multiple personality disorder, and commonly referred to as split personality disorder or dissociative personality disorder, is a member of the family of dissociative disorders classified by the DSM-5, DSM-5-TR, ICD-10, ICD-11, and Merck Manual for diagnosis. It remains a controversial diagnosis. …” URL:

[7] “General Admission Timed Entry Tickets. Tickets only valid for the date and time selected. Tickets are non-refundable. Please maintain social distance and limit your visit to 80 minutes and exit the facility. Guests should check in within the half-hour following their timed entry ( more) View Calendar. Online Sales powered by Vantix Ticketing.” URL:

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My name is Adi, and I am the proud parent of Saar, a lively 17-year-old who happens to have autism. I have created a blog,, with the aim to share our family's journey and offer guidance to those who may be going through similar experiences.Saar, much like any other teenager, has a passion for football, cycling, and music. He is also a budding pianist and enjoys painting. However, his world is somewhat distinct. Loud sounds can be overwhelming, sudden changes can be unsettling, and understanding emotions can be challenging. Nevertheless, Saar is constantly learning and growing, and his unwavering resilience is truly remarkable.

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5 Responses

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    […] the moment Saar was born, I knew he was special. He would intensely focus on patterns, his unique way of processing the world around him, and his unparalleled dedication to the things […]

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    […] RAADS-R assessment is an upgraded variant of the Ritvo Autism Asperger Diagnostic Scale (RAADS). It comprises 80 questions categorized into four subgroups: language, social connectedness, […]

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