Autism Spectrum Screening Test
Take our free 20-question autism spectrum screening test. Based on the AQ-20, this ASD assessment evaluates social communication, sensory processing, executive function, and behavioural patterns.
Understanding autism in adults
Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterised by differences in social communication, sensory processing, and repetitive or restricted patterns of behaviour and interest. It's called a 'spectrum' because it presents very differently from person to person — some autistic people are highly independent; others require significant support.
Many adults reach midlife before receiving an autism diagnosis. This is particularly common in women, who are more likely to 'mask' — consciously or unconsciously camouflage autistic traits to fit social expectations. The diagnostic tools historically used were developed primarily from studies of boys and men, which led to women and girls being systematically underidentified for decades. Women with autism are more likely to be misdiagnosed with anxiety, borderline personality disorder, or eating disorders before receiving an accurate assessment.
An autism diagnosis in adulthood is often deeply clarifying. It can explain decades of social confusion, sensory overwhelm, career difficulties, and burnout that previously seemed like personal failings. A diagnosis also opens access to support services, workplace adjustments, and — often most valuably — a community of people with shared experiences.
The six major domains of autism
Social communication is the domain most people associate with autism. This includes difficulty reading subtle social cues, interpreting language literally, finding small talk exhausting or pointless, preferring direct communication, and frequently misreading sarcasm, tone, or implied meaning. It doesn't mean autistic people don't want connection — most do — but that the social 'rulebook' feels opaque and arbitrary.
Sensory processing differences are extremely common but often underrecognised. Bright lights, loud or unexpected sounds, certain textures in clothing or food, strong smells, or crowded environments can register as genuinely painful or overwhelming rather than merely uncomfortable. Sensory overload causes real distress and fatigue — and is often a major factor in meltdowns or shutdowns.
Restricted and repetitive behaviours include intense, focused interests (sometimes called 'special interests'), strict adherence to routines, repetitive physical movements (stimming — used to self-regulate), and strong preference for sameness and predictability. These are not just quirks: they serve important regulatory functions.
Executive function challenges are frequently co-occurring with autism and include difficulty planning, prioritising, starting tasks, switching between activities, managing time, and staying organised. These challenges are distinct from intelligence — many high-IQ autistic people struggle significantly with executive function.
Cognitive style differences are less often discussed but significant: many autistic people think in highly concrete or literal terms, process information differently (sometimes with remarkable attention to detail in preferred domains), and may have strong black-and-white or all-or-nothing thinking patterns. This can be a strength or a source of friction depending on context.
Post-social exhaustion — sometimes called 'autistic burnout' — describes the significant fatigue, cognitive fog, and emotional depletion that follows sustained social or sensory effort. Needing many hours or days to recover after social events is qualitatively different from introversion and is a meaningful indicator.
About this screening test
This test is based on the Autism Spectrum Quotient (AQ), developed by Simon Baron-Cohen's team at the Autism Research Centre, University of Cambridge. It is one of the most widely validated self-report autism screening tools available and is recommended by NICE (the UK's National Institute for Health and Care Excellence) as a first-line screening instrument for adults.
The 20-question version used here covers all six major autism domains: social communication, sensory processing, routines and sameness, special interests, executive function, and cognitive style. A broader question set provides better coverage than the shorter AQ-10, while remaining practical to complete.
This test cannot diagnose autism. A formal diagnosis requires a comprehensive clinical assessment by a qualified professional, typically involving structured clinical interviews, developmental history (including childhood), and sometimes psychometric testing. However, a clear screening result gives you a concrete, evidence-based basis for requesting that assessment from your GP.
How to Interpret Your Results
| Score Range | Category | What it means |
|---|---|---|
| 0–20 | Few ASD Traits | Your responses suggest few characteristics commonly associated with the autism spectrum. Everyone has some of these traits — yours appear within the typical range. |
| 21–40 | Some ASD Traits | Your responses indicate some characteristics that may be associated with the autism spectrum. Many people have some of these traits without being on the spectrum — but they are worth noting. |
| 41–60 | Moderate ASD Traits | Your responses suggest a moderate number of traits commonly associated with autism spectrum. These patterns are meaningful and worth exploring further with a professional. |
| 61–80 | Significant ASD Traits | Your responses indicate a significant number of characteristics associated with autism spectrum. A comprehensive clinical evaluation is strongly recommended. |
Frequently Asked Questions
Can autism be diagnosed in adulthood?
Yes, and it frequently is. Many adults are diagnosed in their 30s, 40s, or later — particularly women, who are more likely to have spent years masking. A late diagnosis is still a valid and useful diagnosis.
Is autism the same as Asperger's?
Asperger's syndrome was removed as a separate diagnosis in DSM-5 (2013) and is now included under the Autism Spectrum Disorder umbrella. People previously diagnosed with Asperger's typically have autism without significant intellectual disability or early language delay — sometimes called 'high-functioning autism', though many autistic people find that label unhelpful.
What should I do if I score high on this test?
Book an appointment with your GP and be direct: say you've taken a validated autism screening and scored high, and you'd like a referral for a formal assessment. Bring your results and describe specific examples of the traits you experience. Waiting times can be long — getting a referral started now is worthwhile.
Why might I score high but not be autistic?
Several conditions can produce similar traits: ADHD (difficulty with social cues, executive function, sensory sensitivity), social anxiety, OCD, and introversion all overlap with autism. Only a full clinical assessment, considering your whole history, can reliably distinguish between them.
Can autistic people live independently and have careers?
Yes. Many autistic people live independently, have relationships, and have highly successful careers — often in fields that reward depth of focus, attention to detail, or systems thinking. Support needs vary enormously across individuals.
What does 'masking' mean?
Masking (also called camouflaging) is when autistic people consciously or unconsciously suppress or hide their natural autistic behaviours to appear more neurotypical. It's exhausting, very common in women, and is a major reason why many autistic people are missed or misdiagnosed for years.