Posted: 30 January 2024 | Updated: 22 February 2024
Take a free online test to screen a child or young person for autism spectrum disorder.
For adults: Take free autism test for adults.
It will take you about 10-15 minutes to complete and can be completed by parents, caregivers, teachers or paediatricians. Please note that this test cannot diagnose autism spectrum disorder.
If the button above doesn't work, then try this link
Your answers will be kept confidential and will only be used for possible suggestions for treatment and support.
This test is a modified and customized version of the widely recognized Childhood Autism Spectrum Test, also known as the CAST.
The original version of this test was meticulously developed by experts at the prestigious University of Cambridge. It has been used worldwide to help identify potential autism spectrum characteristics in children aged between 4 and 11 years. Please note, while this version has been modified to broaden its applicability, it is not suitable for assessing adults.
This test is to be completed by parents, carers, teachers or educators. It is scored on a scale from 0 to 35, with higher scores indicating a higher likelihood of autism.
Entirely unassociated with the original creators of the CAST test, this test serves educational and entertainment purposes only. Check out our disclaimers for more details.
The test is usually used in conjunction with other assessments such as observation, developmental assessments and interviews with teachers, parents or carers.
It is important to note again that this test is not a diagnostic tool and that a correct diagnosis can only be made by a qualified professional such as a developmental paediatrician, child psychiatrist or clinical psychologist after a comprehensive assessment.
Time of completion
Number of questions
Adapted from an internationally recognised test
Your data will be confidential
If the button above doesn't work, then try this link
This test is designed for children and adolescents aged between 4 and 15 years. It is NOT suitable for adults. To test yourself as an adult, click here.
The Childhood Autism Spectrum Test (CAST) is an evidence-based tool. It assesses the behaviour, cognitive abilities, and social-communication skills of children aged 4 to 11 years, measuring the degree of autism-related traits that may be present.
No, the test results are not intended to replace professional medical advice, diagnosis, or treatment. If you have concerns about your child's behaviour or development, we recommend that you consult with a qualified health professional.
The total possible score is 35, as 6 questions are control questions and are not included in the scoring.
If you answer YES to the following questions, then 1 point is added:
Questions: 6, 7, 9, 13, 14, 20, 21, 23, 28, 29, 30, 32, 34, 38, 40, 41.
If you answer NO to the following questions, then you are awarded 1 point:
Questions: 1, 2, 5, 10, 11, 12, 15, 16, 17, 18, 19, 24, 25, 27, 31, 35, 36, 39.
Control questions (not scored):
Questions 3, 4, 22, 26, 33, 37.
A score of 17 points or more on the test may indicate a potential risk of autism.
This test is adapted and modified version of the internationally recognized Childhood Autism Spectrum Test (CAST), developed at the renowned University of Cambridge. While it can give you an understanding of potential autism-related characteristics, it's essential to note that the test should be used as part of a wider assessment and does not provide a formal diagnosis.
Yes, all information you provide during the test is confidential and stored securely. We take your privacy very seriously and adhere to strict data protection guidelines.
Williams, J. G., Allison, C., Scott, F. J., Bolton, P. F., Baron-Cohen, S., Matthews, F. E., in Brayne, C. (2008). The childhood autism spectrum test (CAST): Sex differences. Journal of autism and developmental disorders, 38(9), 1731-1739. Article URL
Allison, C., Williams, J. O., Scott, F., Stott, C., Bolton, P., Baron-Cohen, S., in Brayne, C. (2007). The Childhood Asperger Syndrome Test (CAST) Test–retest reliability in a high scoring sample. Autism, 11(2), 173-185. Article URL
If the button above doesn't work, then try this link
Stay ahead in your mental health journey. Subscribe for updates on our latest tests, insightful tips, and strategies to manage stress, anxiety, ADHD, and more.
-icon-fwz-L.webp){kind=icon}
-icon-iCerH.webp){kind=icon}
-icon-BqGUI.webp){kind=icon}
