Comprehensive Autism and ADHD Assessment Steps
- taniaslt
- Sep 11
- 4 min read
If you or your child are showing signs that might suggest autism or ADHD, it’s natural to want clarity and support as soon as possible. Understanding the diagnostic process can feel overwhelming, but it doesn’t have to be. I’m here to walk you through the steps involved in a thorough, gold standard assessment that follows NICE guidelines, ensuring you get the best possible advice and support.
Understanding the Autism and ADHD Diagnostic Process
The journey to diagnosis starts with recognising the signs. Autism and ADHD can present in many ways, and sometimes the symptoms overlap or look different depending on age and individual differences. Whether it’s difficulty with social communication, challenges with attention and impulsivity, or sensory sensitivities, these signs are important clues.
Diagnostic Process Overview
The diagnostic process is intended to be thorough and customized for each individual. It includes collecting detailed information from various sources, such as parents, schools, and occasionally partners, friends, or relatives, and other professionals. This approach helps create a complete understanding of how the person operates in different environments.
Our team includes experienced clinicians such as Clinical Psychologists, Speech and Language Therapists, and Psychotherapists specialising in CBT and neurodiversity. We assess individuals from the age of 3 through to adults, ensuring that the process is age-appropriate and sensitive to each person’s needs.

What to Expect During the Autism ADHD Diagnostic Process
When you come for an assessment, you can expect a warm, welcoming environment where your concerns are heard and respected. The process usually involves several stages:
Initial Consultation
Information Gathering Process
Information is gathered prior to the assessment over the phone and through completing an initial questionnaire. This is where you share your concerns and history. We discuss and gather information around:
Developmental milestones
Behaviour patterns
Challenges faced at home
Challenges faced at school
Challenges faced at work
Detailed Assessment Sessions
These sessions may include standardised tests, observations, and interviews. For children, we often gather information from schools or nurseries to understand how they behave in different environments.
Gathering Additional Information
We may request reports from teachers, therapists, or other professionals involved. This helps us see the full picture and rule out other possible explanations.
Feedback and Diagnosis
After careful analysis, we provide clear feedback. If a diagnosis is made, we discuss what it means and the next steps for support.
Post-Diagnosis Support
Diagnosis is just the beginning. We offer advice on strategies, therapies, and resources to help you or your child thrive.
Assessments can be done face to face or online for those aged 11 and above, depending on what suits you best. This flexibility helps reduce waiting times and makes the process more accessible.

The Importance of Thorough and Gold Standard Assessments
Why is it so important to have a thorough assessment? Because autism and ADHD are complex conditions that affect people in unique ways. A rushed or incomplete evaluation can lead to misdiagnosis or missed opportunities for support.
Our assessments follow NICE guidelines, which are recognised by the NHS as the gold standard. This means we use evidence-based tools and methods to ensure accuracy. For example, we use standardised diagnostic interviews and rating scales that have been validated through research.
We also take the time to understand the individual’s strengths and challenges, not just the difficulties. This holistic approach helps us provide personalised recommendations that make a real difference.
If you want to learn more about our approach to autism and adhd assessments, please visit our website for detailed information.
Practical Tips for Preparing for an Assessment
Preparing for an assessment can help you feel more confident and ensure the process goes smoothly. Here are some tips:
Keep a Diary
Note down behaviours, challenges, and successes over a few weeks. This can provide valuable insights during the assessment.
Gather Reports and Records
Collect any previous assessments, school reports, or medical records that might be relevant.
Talk to Your Child
If the assessment is for a child, gently explain what will happen and answer any questions they have.
Prepare Questions
Think about what you want to know from the assessment and write down any questions for the clinician.
Consider Your Preferences
Decide if you prefer face-to-face or online sessions, especially if the person being assessed is over 11.
Remember, the assessment is a partnership. Your input is vital to help us understand the full story.

Moving Forward After the Assessment
Receiving a diagnosis can bring relief, clarity, and sometimes mixed emotions. It’s important to remember that a diagnosis is a tool to help you access the right support and understand yourself or your child better.
Following the assessment, we provide tailored advice on next steps. This might include:
Accessing educational support or workplace adjustments
Exploring therapies such as speech and language therapy, occupational therapy, or CBT
Connecting with local support groups and resources
Developing strategies to manage daily challenges and build on strengths
If no diagnosis is made, we still offer guidance on managing difficulties and exploring other possible explanations.
The goal is always to empower you with knowledge and practical support to improve quality of life.
I hope this guide has helped demystify the autism and ADHD diagnostic process. Remember, seeking an assessment is a brave and positive step towards understanding and support. If you think you or your child might benefit from a thorough evaluation, don’t hesitate to reach out and start the journey.
For more information on our services and how we can help, visit our autism and adhd assessments page.



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