If you are booked in for an adult autism assessment, the ADOS-2 is the part most people have questions about. It is the session where you sit in a room with a clinician, talk, and take part in a few short activities. Some of those activities can feel unusual for an adult, and a few people find them patronising until they understand why they are there. This article explains what the session involves, what the assessor is really looking at, and why the format is deliberately the way it is. It is not a guide to doing well, because the ADOS-2 is not something you can prepare for in that sense. It works best when you simply turn up and be yourself.
The full patient version of this guide is available as a PDF: The ADOS-2 assessment, a guide for adults.
What the ADOS-2 is
The Autism Diagnostic Observation Schedule, Second Edition, is a structured observation that forms part of the gold-standard approach to autism assessment, and it is one of the tools NICE recommends for adults [1, 3]. Where the ADI-R interview looks back over your history, the ADOS-2 is about the here and now. You spend around an hour with a trained assessor, talking and taking part in a small number of short activities, which lets us observe how you naturally communicate, interact and respond in a range of situations.
It is not a test you can pass or fail. There are no right or wrong answers, no trick questions, and nothing is scored on how clever, articulate or knowledgeable you are. It is an opportunity for us to spend time with you and learn how you experience and interact with the world.
Why it can feel odd, and why that is by design
We would rather say this plainly than have you discover it on the day. Some adults find parts of the ADOS-2 a little strange, and a few find it childlike. You may be asked to look through a picture book, describe a picture, or make up a story using a handful of everyday objects. If you are a 45-year-old professional, that can feel like an unusual way to spend an afternoon. There are good reasons for it.
It is the same for everyone
The ADOS-2 is standardised. The version used with adults, Module 4, uses the same materials, the same kinds of activity and the same conversation topics whether the person in the room is 18 or 60, left school at 16 or holds a doctorate [1, 2]. That consistency is what makes the observation reliable. What we see with you can be understood against what has been observed in many thousands of other people, and nobody is advantaged or disadvantaged by their education, their vocabulary or their familiarity with the subject.
The activity is not the point
Nothing in the ADOS-2 measures how well you tell a story or how accurately you describe a picture. The materials are deliberately simple and low-stakes so that they fade into the background. The assessor is interested in everything that happens around the task: how a conversation flows, how you share what you are thinking or feeling, how you use gesture, expression and tone, and how you relate to a person you have only just met. A simple activity gives a shared, neutral starting point for all of that. A complicated or impressive one would get in the way.
Why we do not use your own interests or expertise
It might seem more respectful to build the session around your work or your specialist subject, and you will have a chance to talk about those things. But if the whole hour were spent on areas where you are confident and well rehearsed, we would learn very little about how you manage the ordinary, unscripted social moments that most adults seeking an assessment tell us are the hard part. Unfamiliar, slightly unusual activities are used precisely because they are not rehearsed.
Feeling awkward is expected
Most people, autistic or not, feel self-conscious during parts of the ADOS-2. That is a normal reaction to being observed and it does not count against you. If something feels silly, it is fine to say so. That is a natural response, and far better than trying to hide it.
The practical details
At NeuroFX the ADOS-2 is conducted in person at our Bedford clinic, in a quiet assessment room. It cannot be done over video, because a good deal of what we are looking at depends on being in the same room. Cheyenne, our Specialist ADOS-2 Practitioner, leads the session, with Tina Fox, our clinical lead, observing. Having two clinicians present is standard practice for us: one person focuses on the conversation with you while the other takes notes, so the observation does not rest on a single view.
Allow up to 60 minutes. If you need a break at any point, that can be accommodated.
You are welcome to bring a partner, friend or family member to Bedford for support, and they can wait for you nearby. The session itself is one to one. Part of what makes the ADOS-2 useful is seeing how you interact with someone you do not already know, and having a familiar person in the room changes that. If you have a particular reason for needing someone with you, tell us in advance and we will talk it through.
What happens during the session
The adult version is mostly conversation, with a few short activities in between. We do not provide a script or a running order, for reasons explained below, but in broad terms the session may include:
- Conversation about everyday life, including work or study, your daily routine, friendships and relationships
- Questions about how you experience emotions, and about situations you find difficult or frustrating
- Short activities using simple materials, such as looking at a picture book, describing a picture, or telling a short story
- A brief task where you are asked to show or explain how to do something ordinary
- Questions about your plans and hopes for the future
The assessor guides you through each part and lets you know when you are moving from one activity to the next. Nothing is timed, nothing requires special knowledge, and you can take as long as you need. It is not a memory test, an intelligence test or a personality test.
Some topics touch on things that can be personal, such as loneliness, relationships or difficult feelings. You are in control of how much you share. You can answer briefly, say that you would rather not go into something, or ask to move on.
Why we do not give you more detail than this
Some people ask for a full description of every activity so that they can prepare. We understand the wish to feel ready, and this article gives you enough to know what you are walking into. We stop short of a full account for one reason: the ADOS-2 depends on seeing your natural, spontaneous responses. If you knew precisely what each activity was looking for, you would very reasonably start to think about how you were coming across, and the session would tell us less about you. That would not help you. The most useful thing you can do is arrive without a plan.
You do not need to perform, and you do not need to mask
Many adults have spent years learning to hide the ways they find social situations hard: rehearsing conversations, forcing eye contact, suppressing movements, or working very hard to appear at ease. You do not have to do any of that here. Equally, you do not have to exaggerate anything. If you need to look away, fidget, pause to think, or ask for a question to be repeated, that is fine. If you find a task easy, that is fine too. We are trying to see you as you are.
This matters because the ADOS-2 is known to under-score adults who mask well, particularly women who have spent decades adapting [2]. A session where you are working hard to seem comfortable tells us less than one where you let it show.
Preparing yourself
Very little preparation is needed, and none of it involves the content of the assessment. A few practical things make the day easier:
- Tell us about sensory needs in advance. If lighting, background noise, temperature or particular textures affect you, let us know before the day so that we can adjust the room where we can.
- Bring what helps you feel settled. A fidget item, something to drink, or anything else you would normally have with you is welcome.
- Take any regular medication as usual, unless we have specifically advised otherwise as part of your assessment.
- Plan the journey. Arriving a few minutes early gives you time to settle. If you are unfamiliar with Bedford, ask us about parking and access.
- Keep the day as calm as you can. Where possible, avoid scheduling other demanding activities immediately before or after the session.
After the session
Once the ADOS-2 is complete, you will have a brief opportunity to ask questions about the session. The assessors will not give diagnostic conclusions on the day. That is not evasiveness: the ADOS-2 is one part of a wider assessment, and it would not be right to draw conclusions from it alone [3, 4].
The information gathered is combined with the ADI-R interview, the questionnaires you have completed, and any other reports or records you have provided. You then receive an outcome letter and a detailed report, as set out in the adult autism pathway document you were sent when you booked.
What this means in practice
- The adult ADOS-2 is about an hour, in person, mostly conversation with a few short activities.
- The activities are simple on purpose. What is being observed is everything around them, not how well you do them.
- Feeling awkward or finding parts of it odd is normal and does not count against you.
- Do not rehearse, do not mask, and do not exaggerate. Arrive without a plan.
- The session gives no result on its own. The diagnosis comes from the whole assessment.
When to speak to a professional
If autism is on your mind for yourself, NHS routes start with a GP referral. NeuroFX offers private autism assessment for adults using both the ADOS-2 and the ADI-R. If you have questions about the ADOS-2 that this article does not answer, contact the clinic and we will be as open as we can without undermining the assessment itself. Seek same-day help via 111 (or 999 in an emergency) for any mental health crisis.
