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ASRS v1.1 · Free · No sign-up to start

The free ADHD test for adults

The ASRS v1.1 is the screening questionnaire the World Health Organization developed with a workgroup of adult ADHD researchers. It takes about five minutes, and it tells you whether a full assessment is likely to be worth your time. It does not tell you whether you have ADHD — only a clinician can do that.

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Free · 5 minutes · Instant personalised report

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  • CQC-registered clinics
  • UKAAN/CAAQAS quality standards
  • Free for patients
What this test is

ASRS v1.1, in full

Instrument
ASRS v1.1 (Adult ADHD Self-Report Scale)
Developed by
World Health Organization workgroup
Questions
18 — six in Part A, twelve in Part B
Time
About five minutes
Scoring
Part A scored 0–24; 14 or above is the clinical threshold
Cost
Free, with an instant personalised report

How the ASRS is scored, in detail →

Reading your result

What your score does and does not mean

If you score at or above the threshold

A Part A score of 14 or above means your responses match the pattern seen in adults who go on to receive an ADHD diagnosis. It is a signal that a full assessment could be worthwhile — not a diagnosis, and not a prediction of one.

If you score below it

A score below the threshold means your responses did not match that pattern. It does not rule ADHD out. Screening questionnaires miss people, particularly women and anyone who has spent years building coping strategies. If your experience says otherwise, that is worth more than a questionnaire.

Why ThinkBetter

Faster does not mean lower quality

Anyone can promise speed. Our difference is honest quality governance — the CQC-registered clinics we match you with also work to recognised UK quality standards, with multidisciplinary support and clinical supervision.

Dr Miriana Vrajitoriu

Content clinically reviewed by Dr Miriana Vrajitoriu

Consultant Child & Adolescent Psychiatrist, Founder & Medical Director

GMC 7211553

  • Named clinical reviewer. Our clinical content is reviewed by a Consultant Psychiatrist on the GMC Specialist Register — not anonymous.
  • MDT support and supervision. Matched clinics work to recognised UK quality standards (such as UKAAN/CAAQAS), with multidisciplinary input and clinical supervision.
  • NICE-compliant, GP-ready reports. Assessments produce a thorough, NICE-compliant report designed to be GP-ready. Whether a GP offers shared care is at their discretion — we never guarantee acceptance, and we would be wary of anyone who does.
Good questions

The free ADHD test for adults: common questions

Is an online ADHD test accurate?
The ASRS v1.1 is a validated screening instrument, not a novelty quiz — but screening and diagnosis are different things. It is designed to identify people who would benefit from a full clinical assessment, and it is good at that. It cannot diagnose ADHD, because diagnosis requires a structured clinical interview such as DIVA-5, developmental history, and evidence that traits were present in childhood.
What happens after I take the test?
You get an instant personalised report explaining your Part A and Part B scores and what they suggest. If a full assessment looks worthwhile, you can browse private clinics matched to your postcode and send an enquiry — or take the report to your GP for the NHS route. There is no obligation either way.
Is this test free?
Yes, entirely. ThinkBetter is a marketplace: clinics pay us when a patient they have assessed actually attends, so the screening stays free to you. You are never charged for the test or the report.
Can I use the result to get an NHS assessment?
A screening result is not a referral, but it is useful evidence to bring to a GP appointment. In England you can also ask your GP about NHS Right to Choose, which lets you pick an alternative provider funded by the NHS — though many Integrated Care Boards have introduced funding limits during 2025-2026.
Private ADHD assessment →Assessed for both together →What an assessment costs →Find a clinic near you →How the ASRS is scored, in detail →

Take the free ASRS v1.1 test

Five minutes, no sign-up to start, and a personalised report at the end. No referral and no waiting list.

Start the free test →

Free · Instant report · Screening is a signal, not a diagnosis