Autism assessment • A guide for parents
What happens during an autism assessment?
Understand the main stages, how your child may take part and the questions you can ask along the way.
Assessment brings together developmental history, everyday experiences and clinical observations to explore whether your child is autistic and what support may help.
A fuller picture of your child
The process may involve more than one appointment
Services organise assessments differently. Ask what your child’s pathway includes, who will be involved and when to expect feedback.
Activities should suit your child’s age, communication and developmental needs. The clinician considers information over time, rather than relying only on one session.
Step by step
The main stages of an autism assessment
These stages may overlap or take place in a different order.
1. Developmental history
Parents discuss early communication, play, development, health and everyday experiences. Bring relevant background information and explain any gaps in what you know.
2. Information from other settings
School or nursery may share observations and reports about learning, communication and interaction. Tell the service if your child is out of school or information is difficult to obtain.
3. Meeting and observing your child
The clinician may use conversation, play or structured activities to explore communication and interaction. What happens depends on your child’s age and needs.
4. Assessment tools and wider needs
Tools may help organise observations. The team also considers health, development and other possible explanations or additional needs. A tool result is part of the wider assessment.
5. Reviewing the information
The clinician or team considers the evidence against diagnostic criteria. Further information or appointments may be needed if the picture is unclear.
6. Feedback and next steps
Ask for an explanation of findings, recommendations and any uncertainty. Confirm when a written report will be provided and how follow-up questions can be raised.
Appropriate expertise
Who may be involved?
Assessment can involve psychologists, paediatricians, speech and language therapists and other professionals with relevant autism expertise. Services may bring together information through a multidisciplinary team.
Ask who will assess your child, their qualifications and registration, and how the service accesses any additional expertise needed.
How long will it take?
Check the expected number and length of appointments, the time needed to gather information and when feedback and the report are expected. These are separate from the wait for the first appointment.
Practical preparation
Help your child know what to expect
Before the appointment
- Ask who your child will meet and what may happen.
- Share sensory, communication and accessibility needs.
- Ask about breaks and familiar items.
- Check which parts you can attend together.
Information to bring
- Relevant health and developmental records.
- School or nursery feedback and support plans.
- Examples of difficulties and helpful support.
- Your child’s views, strengths and your questions.
Making the findings useful
What happens after the assessment?
Understanding the outcome
Ask whether diagnostic criteria are met, what the findings mean and whether further assessment is needed. A report should explain the outcome and your child’s strengths and needs.
If autism is not diagnosed, ask what support is appropriate and how remaining concerns can be explored.
Planning support
Clarify recommendations for home and education, who can help implement them and any follow-up arrangements.
Continue discussing current needs with school while awaiting assessment or feedback.
Autism diagnosis and school support →If you disagree with the findings
Ask the team to explain its reasoning and raise any factual errors or missing information. Discuss options for further advice or a second opinion with the assessment team or GP.
Common questions
Questions about the appointment
Can I stay with my child?
Ask beforehand. Some parts may involve you together and others may involve separate conversations or activities. Discuss concerns about separation and any adjustments needed.
What if my child is anxious or cannot complete an activity?
Tell the clinician and ask about breaks, adjustments or another way to gather information. Do not pressure your child to continue through distress.
Will the clinician visit school?
Some pathways include school observation; others gather information through reports or discussions. Ask how your child’s experiences across settings will be considered.
Does assessment automatically lead to a diagnosis?
No. The assessment explores whether criteria are met and may identify other needs or uncertainty requiring further information.
Will we receive a report if autism is not diagnosed?
Ask the service about its reporting arrangements for every outcome, including how the conclusion and recommendations will be explained.
Further information: NHS autism assessment guidance. Your assessment service should explain its individual process.
Related guidance
Explore more autism support
School of Diversity
Need help understanding your next step?
Contact us to ask about assessment options or support with your child’s educational needs.