Adult ADHD self-screener · ASRS v1.1
Find out whether an ADHD assessment is worth your time.
This is the same 18-question scale the World Health Organization developed for adult ADHD screening, with the scoring rules clinicians actually use — plus the four context questions a symptom count leaves out. You get a visual breakdown, not just a number.
Free · no sign-up · about 4 minutes
The full WHO ASRS v1.1, not a shortened knock-off. Takes about four minutes.
The six-item screener predicted clinician-diagnosed ADHD with an area under the curve of about 0.90 — strong for a self-report instrument.
Scoring runs entirely in your browser. No account, no analytics on your answers, no server to leak.
Why most online ADHD quizzes are useless
They tally up how often you say “yes” and hand you a percentage. The ASRS doesn't work that way: each question has its own threshold, because forgetting appointments sometimes is more diagnostic than fidgeting sometimes. Get that wrong and the score means nothing.
They also skip the part that actually decides a diagnosis. Symptom frequency is one of five DSM-5 criteria. Whether it started before you were 12, shows up in more than one setting, genuinely impairs you, and isn't better explained by something else — those four do the heavy lifting. We ask them.