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Adult ADHD test (ASRS v1.1)

Wondering whether your struggles with focus, organisation or restlessness could be ADHD? This free self-test uses the World Health Organization's Adult ADHD Self-Report Scale, the same six-question screen clinicians use, and shows your result as soon as you finish.

  • WHO screening instrument
  • 6 questions, about 2 minutes
  • Answers stay on your device
  • A screen, not a diagnosis

This is a screening tool, not a diagnosis.

For each question, choose the answer that best describes how you have felt and conducted yourself over the past 6 months.

Question 1 of 6 How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?
Question 2 of 6 How often do you have difficulty getting things in order when you have to do a task that requires organization?
Question 3 of 6 How often do you have problems remembering appointments or obligations?
Question 4 of 6 When you have a task that requires a lot of thought, how often do you avoid or delay getting started?
Question 5 of 6 How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?
Question 6 of 6 How often do you feel overly active and compelled to do things, like you were driven by a motor?

What this test is

The Adult ADHD Self-Report Scale (ASRS v1.1) was developed by the World Health Organization with researchers from Harvard Medical School and New York University. The six questions above are Part A, the short screen built from the questions found most predictive of ADHD in adults. Clinicians use the same checklist as a starting point in real assessments.

A screen is a first filter, not an answer. It cannot consider your history, rule other explanations in or out, or diagnose anything. Whatever your score, a comprehensive assessment with a qualified clinician is needed to diagnose ADHD.

How scoring works

The ASRS v1.1 is scored with the official "shaded box" rule. An answer counts as a positive mark when it falls in the shaded range for that question:

  • Questions 1–3 count from "Sometimes" upward.
  • Questions 4–6 count from "Often" upward.
  • 4 or more marks across the six questions means your symptoms are highly consistent with adult ADHD, and further investigation is warranted.

We publish the rule so you can check our work, and so the test still works if your browser cannot run the interactive version. Your answers are scored on your device and never stored or sent anywhere.

What happens after a positive screen

A positive screen means a full ADHD assessment is worth pursuing. In the UK, that usually starts with your GP, who can refer you for an NHS assessment.

Kantoko is bringing private ADHD assessment and ongoing care for adults to the UK, by video. We're not open yet. Join the waitlist and we'll email you our fees and how care will work before we open.

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Questions about this test

Straight answers on accuracy, privacy and what to do next.

Keep reading

Sources and review details The instrument and evidence behind this test
  1. [1] Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist , World Health Organization / Harvard Medical School
  2. [2] The World Health Organization adult ADHD self-report scale (ASRS): a short screening scale for use in the general population , Kessler et al., Psychological Medicine, 2005

Official sources checked 20 July 2026.

Adapted from the Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist, developed by the World Health Organization and the Workgroup on Adult ADHD (Kessler et al., 2005). Reproduced for screening purposes with attribution. This is a screening tool, not a diagnosis.

The six questions are reproduced verbatim from the instrument. Read about how we medically review our content.