Free Screening
ADHD test for adults
Answer 18 questions and get an indication of whether you may have ADHD. The test is completely anonymous.
Quick answers
Is an online ADHD test free and reliable?
Yes. The ADHD test here is free, anonymous and requires neither login nor referral. It is based on the ASRS v1.1 (Adult ADHD Self-Report Scale), developed by the WHO together with Harvard Medical School and New York University. The first six questions (Part A) are the short screener. Answering in the elevated range on four or more of them is a positive screening result that rarely occurs by chance. In Kessler's original 2005 validation, Part A reached a specificity of 99.5% and a sensitivity of 68.7%. The high specificity means a positive result is worth taking seriously, while the moderate sensitivity means a low score does not rule out ADHD.
Which ADHD test for adults is best?
There is no single test that is best for everything. It depends on the purpose. For a quick self-test, the ASRS is the most widely used and best-documented choice, and it is the one you complete here. But no questionnaire can make a diagnosis. An actual ADHD assessment rests on a structured diagnostic interview, and in Denmark the Danish Health Authority recommends DIVA-5, in which a clinician systematically reviews each symptom in both the present and childhood alongside your developmental history and information from someone close to you. The screening points a direction. The interview decides.
What is the difference between a screening and an assessment?
A screening is a short self-test questionnaire like the ASRS: 18 questions you answer yourself in a few minutes, indicating whether your symptoms resemble ADHD. An assessment is the full clinical process that can establish or rule out a diagnosis. It includes a thorough clinical interview, DIVA-5, your developmental and medical history, information from someone close to you, and an evaluation of whether other conditions better explain the picture. The result is compiled into a written report. A screening can therefore never replace an assessment, but it is the first step.
What is the difference between ADHD and ADD?
ADD is an older term for the inattentive form of ADHD, that is, ADHD without marked hyperactivity. Today ADD is no longer used as a separate diagnosis but is understood as the predominantly inattentive presentation of ADHD. The ASRS covers both, because its 18 questions measure both attention and hyperactivity and impulsivity. So if you are searching for an 'ADD test', this is the same test you are looking for here.
The ASRS v1.1 (Adult ADHD Self-Report Scale) was developed by WHO in collaboration with Harvard Medical School. It is the most widely used screening tool for adult ADHD worldwide and is recommended by the Danish Health Authority in the national clinical guidelines.
Your answers are not saved and are not sent to any server. Everything is processed locally in your browser.
How to take the test
- —Choose the answer that best describes how you generally feel, looking at the bigger picture.
- —There are no right or wrong answers. Respond honestly and intuitively.
- —Part A (questions 1–6) is a brief screening. Part B (questions 7–18) provides additional clinical information.
1.How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?
2.How often do you have difficulty getting things in order when you have to do a task that requires organization?
3.How often do you have problems remembering appointments or obligations?
4.When you have a task that requires a lot of thought, how often do you avoid or delay getting started?
5.How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?
6.How often do you feel overly active and compelled to do things, like you were driven by a motor?
— Part B: Supplementary questions —
7.How often do you make careless mistakes when you have to work on a boring or difficult project?
8.How often do you have difficulty keeping your attention when you are doing boring or repetitive work?
9.How often do you have difficulty concentrating on what people say to you, even when they are speaking to you directly?
10.How often do you misplace or have difficulty finding things at home or at work?
11.How often are you distracted by activity or noise around you?
12.How often do you leave your seat in meetings or other situations in which you are expected to remain seated?
13.How often do you feel restless or fidgety?
14.How often do you have difficulty unwinding and relaxing when you have time to yourself?
15.How often do you find yourself talking too much when you are in social situations?
16.When you're in a conversation, how often do you find yourself finishing the sentences of the people you are talking to, before they can finish them themselves?
17.How often do you have difficulty waiting your turn in situations when turn taking is required?
18.How often do you interrupt others when they are busy?
0 of 18 answered
Understand your score
The ASRS screening weights the first six questions (Part A) most heavily, because they best predict ADHD in adults. What counts is the number of answers in the elevated range, not a total point sum.
0–3 of 6 on Part A
Below the screening threshold. Your answers do not immediately point to ADHD. If you nonetheless experience persistent difficulties with attention, restlessness or impulsivity, a conversation with a professional may still be relevant. A low score does not rule out ADHD.
4–6 of 6 on Part A
A positive screening result. Your answers are consistent with ADHD, and a full assessment may be relevant. A positive result is not a diagnosis, but it rarely occurs by chance.
Note: the score is only indicative. Some adults with a later confirmed ADHD diagnosis score as low as 2 on Part A, because self-report is affected by insight, memory and daily form.
By Markus Lien. Updated May 2026.
Frequently asked questions
Yes. The test runs entirely in your browser. Your answers are not saved, are not sent to any server and are not linked to you. We record no results, and you do not need to create an account or provide a name or email.
No. No online test can make a diagnosis. The ASRS is a screening tool that indicates whether your symptoms resemble ADHD. A diagnosis requires a clinical assessment with a structured interview (DIVA-5), your developmental history and the exclusion of other explanations. The test is an informed first step, not a conclusion.
A high result means an assessment may be relevant. You can book an appointment with us directly, without a referral. The process begins with a clinical interview and screening, followed by DIVA-5 and a written feedback report. Feel free to bring your test answers as a starting point for the conversation.
Trust your own experience. The ASRS has a moderate sensitivity, and the inattentive presentation in particular, which is more common in women, is not always captured by a self-report questionnaire. If you have persistent difficulties that affect everyday life, a conversation with a professional is still relevant, regardless of the test result.
The ASRS v1.1 was developed by the World Health Organization (WHO) in collaboration with Ronald Kessler at Harvard Medical School and New York University. It has been translated and used internationally and forms part of the Danish Health Authority's recommendations for screening adults for ADHD.
A full ADHD assessment with medication initiation typically costs 14,800 DKK at ADHD Klinik Copenhagen. It covers clinical interview and screening, diagnostic assessment with DIVA-5, a written feedback report, the first psychiatrist consultation and two medication adjustments. You pay per session and are not tied to a package. The screening test here is free.
About five minutes. The test consists of 18 questions you answer on a scale from 'never' to 'very often'. You get your result immediately on screen, with no waiting and without providing any personal information.
Sources
- Kessler RC, Adler L, Ames M, et al. (2005). The World Health Organization Adult ADHD Self-Report Scale (ASRS): a short screening scale for use in the general population. Psychological Medicine, 35(2), 245–256.
- Kessler RC, Adler LA, Gruber MJ, et al. (2007). Validity of the World Health Organization Adult ADHD Self-Report Scale (ASRS) Screener in a representative sample of health plan members. International Journal of Methods in Psychiatric Research, 16(2), 52–65.
- Danish Health Authority (Sundhedsstyrelsen). National clinical guideline for the assessment and treatment of ADHD in adults (2015, updated 2017).
What next?
Regardless of your result, a screening test is never a diagnosis. The ASRS is a first step. A full ADHD assessment requires a thorough clinical interview and diagnostic tools.
Psychiatrist and psychologist
Assessment, diagnosis and medical treatment under one roof with a team of psychologists and psychiatrists.
Gold-standard tools
We use DIVA-5, the most reliable diagnostic interview for adult ADHD, recommended by the Danish Health Authority.
Short wait time
Short wait time compared to the public system. No referral needed.
Everything in one place
Assessment, feedback, medication, follow-up and therapy, with a team that knows your history from day one.