ASRS v1.1 Screening
Adult ADHD test
This is Part A of the WHO's Adult ADHD Self-Report Scale (ASRS v1.1) — the six questions that best predict adult ADHD. It's a screener that tells you whether a fuller evaluation is worth pursuing, not a diagnosis on its own.
Over the past 6 months, how often have you experienced:
ASRS v1.1 Your result
Your ASRS v1.1 score
0 / 6
What this means
Sensible next steps
Curious how reliable it is? See how accurate the ASRS v1.1 is.
By the numbers Context
How common is adult ADHD?
ADHD is not just a childhood condition. The National Institute of Mental Health estimates about 4.4% of U.S. adults have ADHD, and a large share were never diagnosed growing up — particularly those with the inattentive presentation, which is quieter and disproportionately missed in girls and women. Among children, the CDC reports that about 11.4% of those aged 3–17 have ever been diagnosed.
The six-question ASRS screener was distilled by the World Health Organization from the longer 18-item scale precisely because these items best predict a diagnosis. A positive screen does not mean you have ADHD — it means a fuller evaluation is worth pursuing, ideally with someone who can also rule out the look-alikes.
4.4%
estimated prevalence of ADHD in U.S. adults
NIMH
11.4%
of U.S. children ever diagnosed with ADHD
CDC
6 of 18
ASRS screening questions used — the most predictive items
WHO
Sources: National Institute of Mental Health (NIMH); U.S. Centers for Disease Control and Prevention (CDC); Kessler et al., for the World Health Organization, 2005.
Score guide Interpretation
What your ASRS v1.1 score means
| Score | What it suggests |
|---|---|
| 0–3 | Below the ADHD screening threshold |
| 4–6 | Symptoms consistent with adult ADHD |
Frequently asked questions
Is this ADHD test accurate?
It uses the WHO ASRS v1.1 Part A, a well-studied six-item screen chosen because these questions best predict adult ADHD. It is a strong first-pass screen, but it cannot diagnose ADHD — only a clinical evaluation can.
How many questions do you need to answer yes to on the ASRS?
Four or more marked answers among the six questions is considered a positive screen and a reason to seek a full assessment.
What are the signs of ADHD in adults?
Common adult signs include difficulty sustaining attention, chronic disorganisation and lateness, forgetfulness, starting many tasks and finishing few, restlessness or inner unease, impulsivity, and trouble with anything that needs sustained mental effort. In the inattentive presentation the hyperactivity is minimal, which is a big reason it is missed in adults.
Can an online test diagnose ADHD?
No. Diagnosing ADHD requires a clinical evaluation that looks at your history since childhood, how symptoms affect different areas of life, and whether something else explains them. A screen like this simply flags whether that evaluation is worth pursuing.
What is the difference between ADD and ADHD?
"ADD" is the older, retired name for what is now called ADHD, inattentive presentation — the focus-and-organisation difficulties without obvious hyperactivity. It is the same condition, just an outdated label.
Why is adult ADHD so often missed?
The inattentive presentation is quiet — no visible restlessness — so it rarely gets flagged in childhood, especially in girls. Many adults only recognise it after a child, sibling, or partner is diagnosed.
Is this ADHD test free?
Yes, completely free with no sign-up, and scored privately in your browser.