ADHD traits

Somewhere in the last few years, ADHD stopped being a diagnosis and started being a personality. It became a way of describing yourself to colleagues, a caption, an explanation for a messy flat. That shift did one good thing and one bad thing, and the two are hard to separate: it made an under-recognised condition speakable, and it made a set of criteria with real thresholds sound like a vibe you either give off or don't.

The position of this entry: the honest answer to "do I have ADHD?" is not available from a questionnaire, and that is not a fudge — it is a structural fact about what the criteria require. Two of them, specifically. A questionnaire cannot reach either.

The DSM-5 criteria for adult ADHD are not just a symptom count. Alongside the symptoms sit conditions most people have never heard, and they do most of the work.

Several symptoms had to be present before age 12. Not "I was a daydreamy child" — evidence, from memory that is decades old, of a pattern that was already there. This is the criterion that a thirty-four-year-old answering fourteen questions about the last six months cannot supply, and the one that separates ADHD from the very similar picture produced by burnout, grief, a thyroid problem, a newborn, depression, or a job that is genuinely intolerable.

The symptoms have to show up in two or more settings and interfere with functioning in them. Work and home. Study and friendship. This is the criterion that rules out the enormous category of people who cannot concentrate at one specific desk, in one specific job, for one specific manager. Difficulty confined to one room is information about the room.

There is a third condition that gets skipped even more often: the symptoms must not be better explained by something else. Anxiety eats working memory. Poor sleep eats everything. Trauma looks like distractibility from the outside. A clinician's job is largely to run these down, and it is the part no test performs.

This is the arithmetic nobody puts next to a result, and it is not obscure.

The best-validated adult screener is the WHO's six-item ASRS-5. In Ustun and colleagues' 2017 validation it performed about as well as a short self-report can: sensitivity 91%, specificity 96%. Excellent numbers. And when those numbers were weighted to a population where 8.2% of people actually had adult ADHD, the positive predictive value came out at 67% — meaning one in three people it flagged did not have it.

Now run the same instrument through a lower base rate. Across twenty WHO World Mental Health surveys, current adult ADHD averaged 2.8% of the population. At that prevalence, a 96%-specific test flags roughly three people without ADHD for every two it catches with it: about two in five of its positives are correct. That is the good test, the one built by an international working group and calibrated on clinical interviews. An unvalidated quiz on the internet does worse and reports its result with more confidence.

Sibley and colleagues showed what this looks like when you actually follow it up. They took young adults from a long-running study who had no childhood ADHD, and applied a full diagnostic procedure — parent, teacher and self-reports, symptom context, timing, substance use, other disorders — to those who looked like new adult cases. About 95% of the people who screened positive on symptom checklists were excluded from the diagnosis. The single most common reason was that the symptoms and the impairment only existed inside periods of heavy substance use.

None of this means the screens are bad. It means they are doing the job they were built for, which is to widen a net, not to close a question.

It would be easy to stop there, and it would be a disservice, because the reverse error is common and it costs people years.

ADHD is not a modern invention or a personality fashion. The World Federation of ADHD's consensus statement — 208 conclusions, each drawn from meta-analyses or studies of thousands of people, endorsed by eighty authors across twenty-seven countries — exists precisely because misconceptions about it delay treatment. It is substantially heritable, it is associated with real and measurable costs across education, employment, driving and health, and the treatments have some of the larger effect sizes in the field.

And adults do not get found. In the WHO surveys, treatment-seeking among adults with ADHD was low in every single country. The people most reliably missed are the ones who were never disruptive: quiet inattentive children, particularly girls, who were called dreamy rather than difficult and who compensated well enough that nothing broke until the compensations ran out — at university, at a promotion, at a second child.

So: a low score on a self-test is not a clearance, and "everyone's a bit like that" is not an assessment.

A symptom list is not useful here; you have already read several and they describe everybody sometimes. What is useful is a threshold, and the threshold is about cost and spread, not about intensity.

• The same thing has gone wrong more than twice. Not "I lose my keys" — the renewal that has lapsed three times, the fine paid three times, the deposit lost twice. Repetition despite genuinely caring is the signal; a single bad year is not.
• It happens in the places you chose. Trouble at a job you hate is a job. Trouble at the job you hate, the hobby you love, the book you wanted to read and the conversation with your closest friend is a different shape.
• It was already there. Not a vague sense of always having been like this, but specific residue: school reports, a parent's version of you at nine, the fact that you were moved seats every year.
• Someone else has noticed. Cross-situational impairment is, almost by definition, visible to other people. If nobody in your life has ever independently raised it, that is worth weighing — not as proof, but as data you cannot get from the inside.
• The effort required is disproportionate and hidden. Many adults who are eventually diagnosed were never failing. They were passing at four times the cost, with elaborate scaffolding, and what finally broke was the scaffolding.

Against those, the ordinary version. Attention is worse for nearly everyone than it was ten years ago, and phones are a sufficient explanation for a great deal of it. Boring tasks are boring. Being unable to start something you dread is a near-universal human experience and has its own entry in decision fatigue and in rumination rather than here. Fluctuating focus is not a disorder; it is what focus does.

The ADHD Traits Check reads the same three facets the adult scales read — attention, getting started, stillness — over the same recent window, and returns a screening-style picture. Used properly, that picture is a preparation document: an organised account of what actually happens to you, which is what turns a ten-minute appointment from "I think I might have ADHD" into something a clinician can work with. That is a real use and it is the only one it has.

What it cannot do: establish childhood onset, establish that the difficulty crosses settings, rule out the six other things that produce this exact picture, or tell you that you do not have ADHD. A questionnaire that could do any of those would be a diagnostic interview, and diagnostic interviews take ninety minutes and are conducted by people who are allowed to be wrong out loud.

Where the line is. If the pattern is long-standing, visible in more than one part of your life, evidenced in some form from childhood, and has cost you things you cared about — that is worth an assessment, and the waiting lists are long enough that starting the conversation early is simply practical. Bring the specifics rather than the score: the three lapsed renewals, the two jobs, the thing your mother says about you at nine.

And if the honest description of the last few months is that you cannot concentrate, cannot start anything, and everything has gone grey — that is also what depression looks like, and it is more urgent than a label. That one goes to a doctor this month, not to a quiz. The wider point about what free tests are and are not is in free tests and formal assessments.