Self-test · 20 questions · 5 minutes
The AuDHD test
AuDHD is the informal name for having both ADHD and autism. It is not a diagnosis in the DSM-5 or the ICD-11, and there is no validated instrument that screens for the combination. For eighteen years the DSM did not even permit the two diagnoses together, which is part of why no such test exists.
So this page does the honest version. It runs the two best-established free adult screeners back to back: the WHO's ASRS v1.1 Part A for ADHD and the RAADS-14 Screen for autistic traits. Each is scored by its own published threshold, and both results sit next to each other at the end.
Two numbers, not one verdict.
Credit · Instagram
The clip that prompted this page. By @neuronpond, reposted here with credit. Watch it on Instagram.
Part 1 · Attention
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Over the past 6 months, how often has each of these been true of you?
How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?
Keys 1–5 work
Questions people ask about this test
Is AuDHD a real diagnosis?
Not as a single label. It is community shorthand for holding both diagnoses, and a clinician would write them separately. The DSM-5 lifted the ban on diagnosing autism and ADHD in the same person in 2013; the ICD-11 followed. The research since has found the overlap is large, which is exactly why the shorthand caught on.
Why two separate scores instead of one AuDHD number?
Because a combined number would be invented. Neither instrument was validated against the other, and adding them produces a figure with no published threshold and no meaning. Two scores with real cut-offs behind them beat one score with none.
How accurate is the autistic-traits half?
The RAADS-14 was built for high sensitivity in a psychiatric outpatient population, and it pays for that with specificity. It over-flags in people who have ADHD, anxiety, or depression, which describes a large share of anyone taking this page seriously. Treat a score over the cut-off as a prompt, not a finding. It is published openly under a Creative Commons licence, which is why we can print it here in full.
What do I do with two flagged scores?
Say so at the referral. Plenty of services assess one and not the other, and being sent down a single-track pathway is how people spend two years on a waiting list to be told the wrong half of the story. Ask whether the service assesses both before you accept the slot.
Just the ADHD part?
The six-question ADHD screener on its own takes two minutes.