The after-school crash
Composed all day, then exhausted, irritable or in meltdown at home. Masking through six hours of unwritten social rules costs enormous energy, and the bill arrives at the front door.
Ages 13 to 17 · Parent or teen can answer · 100% free
Free Autism Test for Teenagers
A research-informed autism screening for teenagers aged 13 to 17 — answerable by a parent, or by a teen about themselves. Twenty questions built for how autism actually looks at this age: masking, social exhaustion, intense interests, and the crash that happens after holding it together all day.
Many autistic teenagers were missed as children — especially bright teens and girls, who learned early to camouflage. If your teen holds it together at school and falls apart at home, if friendships keep mysteriously dissolving, if the question "am I autistic?" has come up in your house: this test is a structured, judgement-free place to start. It is a guide, not a diagnosis.
Begin the 20-question screeningWhat to look for
Signs of autism in teenagers
Adolescence raises the social stakes dramatically — and that is exactly when compensated, masked autism starts to show. These are the patterns this teen autism quiz asks about.
Friendships that dissolve
They can make friends but keeping them is mysterious — group chats move too fast, unwritten rules shift, and they end up on the edge of groups they were once inside.
Studied social behaviour
Rehearsing conversations in advance, copying phrases and mannerisms from friends or shows, monitoring their own face — socialising as performance rather than instinct.
Interests with unusual depth
Not just liking a game, band or subject — researching it exhaustively, structuring free time around it, and finding conversations about anything else draining.
Sensory limits that shrink the world
Refusing the canteen for its noise, wearing the same few clothes for texture, exhaustion after busy places — sensory sensitivity that peers seem not to share.
Anxiety, low mood or school refusal
Unrecognised autism at this age often surfaces as anxiety, depression or refusing school. When mental-health struggles have no clear cause, undetected autistic overwhelm is worth ruling out.
Recognise several of these?
Take the free screeningTesting a teenager for autism — why so many are missed
A large share of autistic people are not identified until adolescence or later. The reason is straightforward: many autistic children — especially those without learning disabilities, and disproportionately girls — cope well enough in the structured, forgiving social world of primary school. Adolescence removes the scaffolding. Social rules become faster, implicit and ruthless; academic demands require flexible planning; and the gap between coping and thriving becomes visible, often as anxiety, exhaustion or school refusal.
This free teen autism test asks twenty questions across the areas that matter at this age: conversation and friendship, masking and social energy, routines and flexibility, sensory processing, and intensity of interests. It can be answered by a parent about their teen, or by a teenager about themselves — self-report becomes genuinely valuable at this age, because so much of teenage autism is internal experience a parent cannot see: the rehearsing, the effort, the exhaustion.
If the result indicates notable traits, the route to assessment runs through your GP, and for under-18s a referral is usually to child and adolescent services — start now, because many waiting lists exceed a year and assessment before 18 is generally more accessible than after. Whatever the outcome, a teen who understands why the world feels the way it does — and a parent who understands what the after-school crash actually is — can change daily life immediately. That understanding is what the Nomi app is built to support.
FAQ
Common questions
Can my teenager take this test themselves?
Yes — the questions switch to first person when a teen indicates they are answering about themselves. At this age self-report is genuinely useful, because much of teenage autism is internal: the rehearsing, masking and recovery that parents never see. Some families find it illuminating for parent and teen to take it separately and compare.
Why would autism only show up in the teenage years?
It was there all along — what changes is the environment. Adolescent social life demands fast, implicit, constantly shifting rule-reading, and secondary school removes the routine and adult scaffolding that made coping possible. Teens who compensated for years hit the limits of compensation, and the effort starts showing as exhaustion, anxiety or withdrawal.
My teen has anxiety and hates school. Could that be autism?
Sometimes. Anxiety, depression and school refusal are common in all teenagers — but they are dramatically more common in undiagnosed autistic teens, where they are often the visible symptom of chronic sensory and social overwhelm. If mental-health support keeps not quite working, screening for autism is a reasonable and often overlooked step.
Is it worth pursuing diagnosis at 15 or 16 rather than waiting?
Usually, yes. Under-18 referrals typically go through child and adolescent services, and a diagnosis before leaving school unlocks exam adjustments and support plans that are harder to arrange retroactively. Adult assessment routes exist, but many families regret waiting once they learn how long adult waiting lists run.
What if my teen refuses to consider it?
Follow their pace — identity is delicate at this age. You can take the parent version yourself to structure your own observations, and simply leave the door open. Many teens who resist a label respond well to framing around understanding ("why do busy places wipe you out?") rather than diagnosis.
Ready when you are
20 questions, 5–7 minutes, and a result you can actually act on. Free — including your results.
This screening is an informal guide, not a clinical diagnosis. Results are best reviewed with a GP, paediatrician or qualified clinician.