Self-screener

ADHD self-screener

The WHO Adult ADHD Self-Report Scale (ASRS-v1.1). 18 questions, around 5 minutes. Runs entirely in your browser, nothing you enter is stored or sent anywhere.

Reviewed by ADHD Scot,

This is not a diagnostic tool. A positive result means it may be worth speaking to your GP or a private clinician. It does not mean you have ADHD. A negative result does not rule ADHD out. This screener is for adults aged 18 and over.

About the ASRS-v1.1

The ASRS-v1.1 was developed by Dr Ronald Kessler of Harvard Medical School in partnership with the World Health Organization. It is one of the most widely used adult ADHD screening tools in the world and is referenced in SIGN 145, Scotland's clinical guideline for ADHD.

The screener has 18 questions in two parts. Part A (6 questions) is the most predictive of ADHD in adults and is what clinicians focus on. Part B (12 questions) provides additional context.

18questions total
~5minutes
No data stored
Over the past 6 months Your answers are completely private, nothing is saved or sent
Part A

Questions 1–6

These 6 questions are the most clinically significant. A score of 4 or more in Part A is considered a positive screen.

Part B

Questions 7–18

These 12 questions provide additional context but are less predictive on their own.

After completing the screener

If your responses suggest ADHD symptoms may be present, the next step is to speak to your GP or a private clinician. You can mention that you completed the ASRS-v1.1 screener and share your result, it is not a clinical document, but it can help start the conversation.

Your GP can then consider a referral for a full assessment. See our NHS pathway page for information on what happens next in Scotland. If your GP is unfamiliar with the ASRS, you can mention that it is referenced in NHS Right Decisions guidance, Scotland's clinical guideline for ADHD.

Also measure how ADHD affects your daily life

Functional impairment scales measure real-world impact at any stage, before a GP referral, at assessment (functional impairment is a diagnostic criterion under NICE NG87), or during treatment to track whether medication is making a difference.

WFIRS-S Self Report, for adults 69 questions · 7 domains Start scale → WFIRS-P Parent Report, for parents and carers 50 questions · 6 domains Start scale →

Also take the autism self-screener (AQ-10), ADHD and autism commonly occur together (AuDHD).

Source and copyright

The ASRS-v1.1 is copyright © 2003 World Health Organization. It is reproduced here for non-commercial public information use. The full questionnaire and scoring guide are available via ADDA (the Attention Deficit Disorder Association).

Citation: Kessler RC, Adler L, Ames M, et al. The World Health Organization Adult ADHD Self-Report Scale (ASRS). Psychological Medicine. 2005;35(2):245–256.

ADHD Scot is an independent, non-clinical information project. This screener is not a diagnosis. Always speak to your GP or a qualified clinician about your own health.