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Based on diagnostic criteria from the DSM-5, and the World Health Organization’s report screening tool, this test assesses signs and symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD). ADHD is often overlooked in adults, though it affects approximately 5% of the adult population.

Do you have ADHD? For each of the following items, indicate whether it applies to you.

Question 1 of 18

I put off tasks that I know will require a lot of attention or thought.


The IDRlabs Adult ADHD Test is the property of IDRlabs International. It was inspired by the original research and screening tool was produced by the American Psychiatric Association and the World Health Organization.

The ADHD Test is a widely-used instrument for measuring this psychological construct. Free online tests such as this are only initial considerations of the psychological concept being examined and cannot provide entirely accurate assessments of your personality or components of your psychological state. This test is to be used exclusively for screening purposes—a mental health diagnosis can only be made by a psychiatrist or other mental health professional.

As the publishers of this free online ADHD test, which allows you to screen yourself for the signs and symptoms of ADHD that otherwise often remain unrecognized, we have strived to make the test as reliable, valid, and complete as possible. Like other online psychological tests such as our DSM Test, Psychopathy Test, Dark Triad Test, and Dark Core Test, as well as other professional tools, our free online test is subjected to statistical controls and validation in order to make the results reliable and accurate.

The authors of this free online test are certified in the use of numerous psychological tests and have worked professionally with psychometrics, typology, and personality testing. Before completing our free ADHD screening test, please keep in mind that while some of the results provided may be compatible with the results of other tests and training materials, this test should not be confused with official trademarked tests. The results of our free online ADHD test are provided "as-is” and should not be interpreted as the equivalent of professional assessment or recommendations. For additional information, please consult our Terms of Service.

Why Use This Test?

1. Free. This online ADHD Test is delivered to you free of charge and will allow you to obtain your scores on psychological criteria related to ADHD and informed by the World Health Organization and the American Psychiatric Association.

2. Validity and reliability. Empirical testing has shown the validity of the ADHD Test. The evidence has been published in scientific journals and the construct has been shown to have good scientific validity.

3. Based on peer-reviewed research. The present test is based on peer-reviewed research as published in notable scientific journals.

4. Statistical controls. Test scores are logged into an anonymized database. Statistical analysis of the test is conducted to ensure maximum accuracy and validity of the test scores.

5. Made by professionals. The authors of this free online test are certified in the use of numerous psychological tests and have worked professionally with personality and psychological testing.