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If you’ve booked or are thinking of booking an adult autism assessment, it’s natural to wonder what happens during the session. What questions will be asked? Will you know what to say?
The good news is that an autism assessment isn’t a test you can “pass” or “fail”. It’s a structured, supportive process designed to understand your experiences, strengths and challenges so our clinicians can give you a clear and accurate diagnosis and helpful next steps.
Here, we’ll explore the main themes of an adult autism assessment, share example questions, explain how long the process usually takes, and offer practical tips to help you feel prepared and confident for your appointment.
While every clinician has their own approach, tailored to each person, most autism assessments in the UK, particularly those following NICE guidance and national best practice, cover similar core areas. Together, these themes help build a complete picture of your developmental history, your experiences of the world, and the strategies you use each day.
Here are some key areas you might talk about:
You may be asked about early childhood behaviours, key milestones and family life. Clinicians often request input from someone who knew you as a child, as this can highlight traits that began in early development.
This explores how you interact in different social settings, your comfort level in conversations and whether you find it easy to read social cues like tone of voice or facial expressions.
Questions here might focus on structured routines, special interests or your reactions to sensory experiences such as light, sound or touch.
The focus here is on how you manage daily tasks, transitions and stress, as well as whether you’ve developed coping strategies to navigate challenges.
Here are examples of typical questions you might be asked during an autism assessment, grouped by theme:
Developmental history
Social communication and interaction
Repetitive behaviours and sensory differences
Daily living and coping strategies
🛈 These questions are examples only. Gaining insight into these areas helps our clinicians compare your experiences against the diagnostic criteria for autism and determine whether an autism diagnosis is appropriate.
There’s no fixed number of questions. Instead, expect a structured interview lasting around 2–4 hours, sometimes split over more than one session. The length can vary depending on:
Yes, while you’ll still cover autism-related themes, a combined ADHD and autism assessment also includes questions about attention, impulsivity and hyperactivity. You may be asked:
This helps the clinician identify whether traits are due to autism, ADHD, or both, which is essential for making the right support recommendations.
For further insight, read our article on the signs of autism and ADHD in children. While written for parents, it’s a useful overview of autism traits that may continue into adulthood.
Preparation can make the process smoother and more comfortable. Here are some helpful tips:
Taking the first step towards an assessment can feel daunting, but you don’t have to do it alone. At Xyla, we offer a free, no-obligation consultation so you can:
Book your free consultation today and take the first step toward clarity and support.
Book free consultationEleanor brings more than two decades of experience delivering and leading mental health services within the NHS to her role as Head of Clinical Services at Xyla. A highly respected clinician and leader, she combines extensive knowledge with a deep passion for doing what’s right for each individual.
Have any questions about our services? Whether you’re wondering about how we can help, we’d love to hear from you.
Get in touchPlease note: We are not an emergency service, if you are in crisis and need urgent support or are worried about immediate risk of harm to self or others, please call 999. Alternatively, you can contact your GP and ask for an emergency appointment or visit your local A&E department. You can also contact the following services 24 hours a day, 7 days a week: NHS Helpline (111) and Samaritans (116 123).