ADHD or Autism Test: See Which Pattern Fits You Better, or Whether Both Do
ADHD and autism overlap on so much, from interrupting to exhaustion after socializing, that a generic checklist cannot tell them apart. This test takes twelve shared experiences and asks which reading of each fits you: the ADHD-typical one or the autism-typical one. You see both patterns side by side, how close the call was, and where to go next.
Reviewed byMichael Callans, MSWADHD or Autism? Test: Which Pattern Fits Better is a free, confidential 24-question self-assessment, original paired items, one experience read two ways · not a diagnostic instrument. It takes about 5 minutes, runs entirely in your browser, and gives you a plain-language profile of your strongest style plus an optional in-depth report. It is an educational screening, not a diagnosis.
Same experience, two different reasons
Someone with ADHD and someone who is autistic can both interrupt, both find socializing draining, both lose a whole afternoon to one thing. The behavior looks the same from outside; the reason behind it is often different. This test is built entirely around that difference. Each of the twelve shared experiences appears twice, once in its ADHD-typical form and once in its autism-typical form, and you rate how well each fits. Nothing here is a deficit, and no result is a diagnosis; the point is a clearer question to bring to an assessment.
Twelve shared experiences, read two ways
Interrupting, routines, distraction, time, restlessness, interests, social exhaustion, conversation, variety, small talk, emotions, and sensory life. Each appears as a pair: why you interrupt, why routines matter or do not, what makes socializing tiring. A generic quiz asks whether you interrupt; this one asks which reason sounds like you.
Both patterns scored side by side
Twelve statements are tagged to the ADHD-typical pattern and twelve to the autism-typical pattern, each rated on a five-point agreement scale. You see both bars, so a 70 to 65 result reads as the close call it is, and a clear lean reads as a lean. Many people endorse both strongly, and the result says so rather than forcing a choice.
An honest route to the next step
A lean toward one pattern points you to the full screen for that pattern. A close call or a tie points you to the AuDHD test, because co-occurrence is common and an assessment can look at both at once. Every result ends with how to find an assessor who knows the adult presentations, including the ones that have historically been missed in women.
| Feature | Typical free quiz | Psychology.com |
|---|---|---|
| Built around what separates the two | A general ADHD or autism checklist, re-run | Twelve shared experiences, each read the ADHD way and the autism way |
| Allows for both | Forces one label | Both bars shown; a close call routes to the AuDHD test |
| Affirming language | Deficits and symptoms | Differences in how attention, energy and social life work |
| Item source | Often copied from screening tools | Original paired statements written for these twelve experiences; nothing from a screening tool |
| Honest about what it can do | Implies a diagnosis | Says plainly it narrows the question for an assessor rather than answering it |
| Clinician-reviewed interpretation | Rarely | Yes, clinician reviewed |
| Answers stay on your device | Often collected | Scored in your browser; only summary scores if you request a PDF or report |
The 2 patterns this test measures
- ADHD pattern: Attention pulled by novelty, thoughts that will not wait, energy that needs somewhere to go.
- Autism pattern: Routine as steadiness, interests that run deep, social signals decoded by effort, senses turned up.
If nothing is endorsed, every pattern scores the same, or the leading patterns tie, the result says so instead of naming a single pattern.
How this ADHD or autism test is scored
There are 24 statements in two parts. Twelve describe the ADHD-typical reading of a shared experience and twelve the autism-typical reading, and the pairs sit next to each other so you can feel the contrast as you answer. Each statement is rated from strongly disagree (0) to strongly agree (4). The engine sums the twelve ADHD-typical statements and the twelve autism-typical statements separately, shows each as a percentage of its maximum (48), and names the higher one as your leading pattern. An exact tie is reported as a tie, and a result where you endorsed nothing is reported as that, rather than defaulting to whichever pattern comes first.
The percentages describe how strongly you endorsed our statements, not how you compare with other people, and the two groupings are our own educational framework rather than validated scales. A lead of 15 percentage points or more is a clear lean; under 10 points means both readings fit you about equally, which is a real and common result. There are no published cutoffs for a contrast like this, and we do not pretend to have one.
What the two patterns share, and where they part
ADHD and autism are distinct neurodevelopmental patterns that overlap far more than the old diagnostic rules allowed for. Until 2013 the official manual did not permit both to be diagnosed in the same person; the current edition does, and a 2021 meta-analysis of studies on autistic people found a current ADHD rate of around 38 percent. The two share genetic influences, both involve differences in executive function (planning, starting, switching, holding things in mind), and both can make social life exhausting. That is why a checklist of behaviors cannot separate them: the behaviors are shared.
The reasons tend to differ. In the ADHD-typical pattern, attention is pulled by novelty and dropped by routine; interrupting happens because a thought will vanish if it is not said; socializing tires you through the effort of holding back impulses and tracking a fast thread; interests burn bright and fade; and emotions arrive fast and pass fast. In the autism-typical pattern, routine is a source of steadiness and change is costly; interrupting happens because the timing of turns is hard to read; socializing tires you through the live work of decoding expressions, tone and unwritten rules; interests are few, deep and lasting; and sensory input that others tune out stays loud. Neither reading is better. Both describe ordinary ways a mind can be built.
Many people recognize themselves in both columns, and that is not a failure of the test. Research consistently finds that the two co-occur in a large minority of people with either, and that the combination can look different from either one alone: a need for routine that keeps getting broken by the person's own impulsivity, or deep interests that change more often than a purely autistic pattern would predict. If your bars came out close, the AuDHD Test (Autism + ADHD) is written for exactly that picture.
Why adults, and especially women, get sorted wrong
Both patterns were first described in boys, and both sets of screening questions still lean toward how they show in boys: visible hyperactivity, visible social withdrawal. Adults, and women and girls in particular, often present differently: ADHD as inner restlessness, chronic lateness, and a life held together by effort; autism as careful masking, rehearsed social scripts, and exhaustion afterward. Both groups are frequently diagnosed late or diagnosed with something else first, such as anxiety or depression. If that describes you, the ADHD Test for Women and Autism Test for Women are written around those presentations, and the Sensory Processing Test looks at the sensory side on its own, since sensory differences are common in both patterns and are a strong clue toward the autistic one when they are pronounced.
What to do with your result
Take the full screen for your leading pattern next: the ADHD Test (Adult) or the Autism Test (Adult). If the margin was narrow, take both, or go straight to the AuDHD Test (Autism + ADHD). Then, if the screens agree with your sense of yourself, look for an assessment with someone who evaluates adults for both patterns, because an assessor who only looks for one will only find one. Bring concrete examples from the past few months and from childhood if you can; the contrasts in this test are a good list to start from. And whatever the result, the differences this test describes are not problems to be fixed. They are the shape of how your attention, energy and social life work, and understanding that shape is what makes the right support possible.
Methodology & sources
We wrote 24 original statements for this test, twelve tagged to the ADHD-typical pattern and twelve to the autism-typical pattern, each rated on a five-point agreement scale scored 0 to 4. The statements are built as twelve pairs. Each pair takes an experience that research and clinical description find in both patterns, such as interrupting, social exhaustion, distractibility, or intense focus, and writes the reason behind it two ways: the way it tends to work in ADHD (attention pulled by novelty, a thought lost if not spoken, fatigue from holding back impulses) and the way it tends to work in autism (routine as steadiness, the timing of turns hard to read, fatigue from decoding social signals in real time). We deliberately wrote no statements about experiences that would not separate the two, such as executive function difficulties on their own, because those would add noise without sorting anyone. Each pattern sums to a score from 0 to 48, shown as a percentage, and the higher one is your leading pattern; a tie is reported as a tie. The two groupings are our own educational framework, not validated scales, and no item is drawn from any published or proprietary screening instrument.
The contrasts draw on the overlap literature, in particular Antshel and Russo's review of shared and distinct features of the two patterns, Rong and colleagues' meta-analysis of ADHD rates among autistic people, and Hours and colleagues' discussion of what co-occurrence actually means. A contrast test like this one has clear limits. It cannot tell you whether you have either pattern, only which of two readings of your own experience you endorse more strongly; it cannot see the developmental history an assessment relies on; and because both patterns co-occur so often, a lean toward one never rules out the other. We offer it for adult self-reflection and as a way to arrive at an assessment with a sharper question, not as a diagnosis. The language throughout treats both patterns as differences in how a mind works rather than as deficits.
References
- Antshel KM, Russo N. Autism spectrum disorders and ADHD: overlapping phenomenology, diagnostic issues, and treatment considerations. Curr Psychiatry Rep. 2019;21(5):34. doi.org/10.1007/s11920-019-1020-5
- Rong Y, Yang CJ, Jin Y, Wang Y. Prevalence of attention-deficit/hyperactivity disorder in individuals with autism spectrum disorder: a meta-analysis. Res Autism Spectr Disord. 2021;83:101759. doi.org/10.1016/j.rasd.2021.101759
- Hours C, Recasens C, Baleyte JM. ASD and ADHD comorbidity: what are we talking about? Front Psychiatry. 2022;13:837424. doi.org/10.3389/fpsyt.2022.837424
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed., text revision (DSM-5-TR). Washington, DC: American Psychiatric Association Publishing; 2022. psychiatry.org/psychiatrists/practice/dsm
Cite this source
Psychology.com. (2026, October 20). ADHD or Autism? Test: Which Pattern Fits Better. Psychology.com. https://psychology.com/tests/adhd-or-autism
ADHD or Autism? Test: Which Pattern Fits Better FAQ
What is the difference between ADHD and autism?
Both are lifelong neurodevelopmental patterns and both affect attention, energy and social life, which is why they are so often confused. In broad strokes, the ADHD pattern centers on attention that is pulled by novelty and dropped by routine, inner or outer restlessness, and emotions that arrive fast; the autistic pattern centers on a preference for routine and predictability, deep and lasting interests, differences in reading social signals, and sensory input that stays loud. Many people have both, and the combination can look different from either alone.
Can you have both ADHD and autism?
Yes. Since 2013 the diagnostic manual has allowed both to be diagnosed together, and research since then finds that a large minority of people with either pattern also meet criteria for the other; a 2021 meta-analysis put current ADHD at around 38 percent among autistic people. If your two bars came out close, that is a reason to take the AuDHD test and to ask any assessor to look at both.
Which is more likely if I am a woman?
Neither, but both are more likely to have been missed. The classic descriptions of both patterns come from boys, and women and girls more often show ADHD as inner restlessness and a life held together by effort, and autism as careful masking followed by exhaustion. Many are diagnosed late or with anxiety or depression first. The ADHD test for women and the autism test for women are written around those presentations.
Does a lean toward one pattern rule out the other?
No. This test only tells you which of two readings of your own experience you endorsed more strongly. Because the two patterns co-occur so often, a lean toward ADHD does not rule out autism and the reverse is also true. Treat the lean as the first screen to take, not as a verdict, and treat a narrow margin as a reason to take both.
Is this test a diagnosis?
No. It is an original educational questionnaire for adults, not a validated instrument and not a substitute for assessment. It cannot see your developmental history, which an assessment relies on, and it does not use any published diagnostic criteria as items. What it can do is give you a sharper question to bring to someone who evaluates adults for both patterns.
Is the test really confidential?
Yes. It runs entirely in your browser. Your individual answers are scored in your browser and are never sent to us or linked to you. They stay in this tab so you can return to your result, and closing or clearing the tab clears them. If you ask us to email the PDF, we receive your summary scores with your email address, never your individual answers. No account is needed.