Understanding the Diagnostic Criteria for ADHD
- taniaslt
- 3 days ago
- 4 min read
If you’ve ever wondered whether you or your child might have ADHD, you’re not alone. Many people seek clarity about their experiences and behaviours, hoping to understand themselves better. Getting a diagnosis can feel like a big step, but knowing what to expect from the process can make it much easier. In this post, I’ll walk you through the ADHD diagnostic criteria, explain how assessments work, and share what happens after diagnosis. Let’s explore this together in a straightforward, friendly way.
What Is ADHD and Why Does Diagnosis Matter?
ADHD, or Attention Deficit Hyperactivity Disorder, is a neurodevelopmental condition that affects how people focus, control impulses, and manage energy levels. It’s not just about being hyperactive or inattentive; it’s a complex condition that shows up differently in everyone.
Understanding whether ADHD is part of your or your child’s life can be life-changing. It opens doors to tailored support, strategies, and sometimes treatment that can improve daily life significantly. But how do professionals decide if someone has ADHD? That’s where the diagnostic criteria come in.

Exploring the ADHD Diagnostic Criteria
When clinicians assess for ADHD, they follow specific guidelines to ensure accuracy and consistency. These guidelines are based on the latest research and are recognised by the NHS and NICE (National Institute for Health and Care Excellence). The criteria focus on two main areas:
Inattention: Difficulty sustaining focus, forgetfulness, disorganisation.
Hyperactivity and Impulsivity: Excessive movement, interrupting, impatience.
To meet the diagnostic criteria, symptoms must:
Be present for at least six months.
Appear before the age of 12.
Occur in two or more settings (for example, at home and school or work).
Interfere with or reduce the quality of social, school, or work functioning.
Not be better explained by another mental health condition.
These criteria help clinicians differentiate ADHD from other conditions and understand the full picture.
If you want to learn more about the specific adhd criteria we use in our assessments, you can find detailed information on our website.
How We Carry Out Thorough ADHD Assessments
Our approach to ADHD assessments is thorough and personalised. We understand that every individual is unique, so we take the time to gather detailed information from multiple sources. Here’s what you can expect:
Initial Consultation: We start with a friendly chat to understand your concerns and history.
Detailed Questionnaires: These help us capture behaviours and symptoms over time.
Information Gathering: We collect reports from schools, workplaces, or other relevant settings.
Clinical Interviews: Our experienced clinicians, including Clinical Psychologists, Speech and Language Therapists, and Psychotherapists, conduct in-depth interviews.
Observation and Testing: Depending on age and needs, we may use specific tests to assess attention, memory, and executive function.
We offer assessments for children from 5 years old through to adults. For those over 11, assessments can be done face to face or online, depending on what suits you best.

What Happens After Diagnosis?
Receiving a diagnosis is just the beginning. It’s a key step that helps you understand yourself or your child better and opens up access to support. After diagnosis, we provide:
Clear Feedback: We explain the results in simple terms and answer any questions.
Tailored Advice: This might include strategies for managing symptoms at home, school, or work.
Referrals: If needed, we can guide you to other professionals or support groups.
Follow-Up Support: We’re here to help you navigate the next steps and adjust plans as needed.
Remember, a diagnosis is not a label but a tool. It helps you make informed decisions and find ways to thrive.
Why Choose a Gold Standard ADHD Assessment?
You might wonder why it’s important to choose a Gold Standard assessment. Here’s why:
Accuracy: Following NICE guidelines ensures the diagnosis is reliable, recognised by the NHS and Education.
Experience: Our clinicians have many years of expertise in neurodiversity.
Comprehensive: We look at the whole person, not just symptoms.
Flexible: Face-to-face or online options make the process accessible.
Supportive: We prioritise your comfort and understanding throughout.
Choosing the right assessment means you get the best possible advice and support tailored to your needs.
Taking the Next Step with Confidence
If you suspect ADHD might be part of your or your child’s life, seeking an assessment is a positive step. It’s natural to feel uncertain or anxious, but remember, you’re not alone. With the right information and support, you can gain clarity and find strategies that work.
Our team is here to guide you through every stage, from initial enquiry to post-diagnosis support. Whether you prefer a face-to-face meeting or an online session, we’ll make sure the process is as smooth and reassuring as possible.
Understanding the ADHD diagnostic criteria is the first step towards understanding yourself or your child better. If you’re ready to explore this further, don’t hesitate to reach out.
If you want to learn more about our ADHD assessments or book a consultation, visit our adhd criteria page today. We’re here to help you on your journey to greater understanding and support.



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