ADHD Overview
What is attention deficit hyperactivity disorder (Adhd)?
ADHD is a neurodevelopmental condition that impacts attention, self-regulation, and organisation. It presents differently for each person — from outward signs like hyperactivity and restlessness, to more subtle challenges such as distractibility, forgetfulness, or difficulties with planning and follow-through.
Research shows that many people with ADHD experience a significant delay between the onset of symptoms and receiving a diagnosis.
A thorough ADHD assessment helps bridge that gap. It involves a structured, evidence-based process to explore patterns of inattention, hyperactivity, and impulsivity across various settings — building a clearer understanding of how ADHD may be affecting daily life.

Assessment Process
Our assessment process
Our approach is collaborative, thorough, and person-centred, ensuring that each individual receives an assessment tailored to their unique profile.
This process includes:
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Detailed History
We explore your psychosocial, developmental, and medical history to understand how your symptoms have evolved over time and their impact on daily life.
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Document Review
If available, we review past assessments, educational records, workplace reports, and medical documentation to gain a full picture of your history and experiences.
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Screening Tools & Questionnaires
We use standardised, evidence-based measures to assess ADHD-related symptoms across different settings, including school, work, and home.
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Clinical Interviews & Observer Reports
In-depth conversations with you and, where appropriate, input from parents, teachers, partners, or other key figures to provide additional insights.
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Continuous Performance Test
Following NICE guidelines, we may use objective tools like the QbTest—an assessment of attention, impulsivity, and activity levels—to complement clinical observations.
Diagnostic Formulation
We integrate all gathered information—including clinical interviews, observer reports, and test results—to determine whether an ADHD diagnosis is appropriate.

Feedback and Clinical Report
Feedback appointment to discuss the assessment findings, providing a clear overview of your strengths, difficulties, and personalised recommendations for support, accommodations, and treatment.
You will also receive a detailed final report, which you’re welcome to share with any relevant professionals, educators, or support networks.
Assessment
The Importance of an ADHD Assessment
A professional ADHD assessment provides more than just a diagnosis—it offers individuals and families a deeper understanding of their strengths, challenges, and needs.
1
Improving Access
A formal diagnosis is often required to access reasonable adjustments at school, university, or work. This may include extra exam time, flexible working arrangements, and specialist support such as medication or therapy.
2
Symptom Clarity
ADHD symptoms can overlap with a number of conditions such as anxiety, depression, autism, or trauma.
A thorough assessment helps differentiate ADHD from other conditions — avoiding misdiagnosis and mistreatment.
3
Improved Self-Understanding & Confidence
Left unrecognised, ADHD can impact relationships, academic/work performance and emotional wellbeing.
Diagnosis is often a turning point. Individuals frequently describe feeling “validated”, no longer being labelled as the 'naughty child', or 'lazy', and finally understanding their lifelong challenges — paving the way for effective coping strategies and personal growth.
4
Guidance for Families & Educators
Parents, teachers, and employers can provide specific support for individuals with ADHD when they have a clear understanding of their needs and abilities.
Early diagnosis and tailored support for ADHD are associated with improved academic and occupational success, reduced risk of mental health issues, and better emotional regulation and resilience.




FAQs
Frequently Asked Questions
What is ADHD and how does it differ from ADD?
ADHD (Attention Deficit Hyperactivity Disorder) is a neurodevelopmental condition that affects focus, impulsivity, and hyperactivity. It can impact various aspects of daily life, including work, relationships, and academic performance.
ADD (Attention Deficit Disorder) was previously used to describe a subtype of ADHD that does not involve hyperactivity. However, the term ADD is no longer officially recognised in clinical settings, and all presentations now fall under ADHD.
ADHD is categorised into three subtypes:
✔ Inattentive type – Difficulty sustaining attention, forgetfulness, and disorganisation (often previously referred to as ADD)
✔ Hyperactive-Impulsive type – Restlessness, impulsivity, and difficulty sitting still
✔ Combined type – A mix of inattentive and hyperactive-impulsive symptoms
Recognising the different presentations of ADHD is key to ensuring individuals receive the right support and interventions tailored to their unique experiences.
Can adults be diagnosed with ADHD, or is it only a childhood condition?
Absolutely—adults can be diagnosed with ADHD. While ADHD is often considered a childhood condition because symptoms must be present from an early age, many individuals reach adulthood without ever being formally diagnosed.
This can happen for several reasons, including:
✔ The ability to “mask” symptoms, especially in structured environments
✔ Limited awareness of ADHD in educational and healthcare settings
✔ Symptoms being misattributed to other conditions, such as anxiety or autism spectrum disorder (ASD)
For many adults, an ADHD diagnosis can bring a sense of clarity, helping them understand lifelong patterns of challenges and strengths. It also opens the door to effective treatment and support, improving daily functioning and overall well-being.
How do I choose the right private ADHD assessment provider?
Great question! With many private ADHD providers available, it can be overwhelming to decide who to trust with your assessment.
While most reputable providers follow NICE Guidelines, key differences can impact your experience and the quality of your assessment:
Assessment Process & Thoroughness – How detailed are their assessments? Do they consider multiple sources of information (e.g., clinical interviews, standardised measures, collateral reports)?
Report Quality & Detail – Will the report be comprehensive enough to support treatment, workplace or educational accommodations, and future care?
Timelines – How long will the full assessment process take, from the initial consultation to receiving a final report?
Follow-Up Support – Does the provider offer guidance beyond the assessment, such as referrals, treatment options, and practical strategies?
Transparency & Reputation – Are they open about their methods, and do they have appropriately qualified clinicians, registered with regulatory bodies, and experienced in ADHD assessment?
Unfortunately, concerns have been raised in the media about some private providers offering rushed, one-off assessments that do not meet clinical standards. In these cases, diagnoses may not hold up under scrutiny, potentially causing issues with accessing appropriate support in education, employment, or healthcare settings.
At The Neurodevelopmental Clinic, we stand by the quality, reliability, and integrity of our assessments. Every assessment follows clinical best practices and is conducted by experienced professionals. Our reports are detailed, transparent, and fully defensible, ensuring clarity and confidence in the diagnostic process.
We also prioritise:
✔ Competitive pricing & flexible payment options
✔ Reduced wait times compared to NHS services
✔ Comprehensive reports with clear recommendations
✔ A holistic approach, ensuring you receive the right support beyond diagnosis
How do I prepare for an ADHD assessment?
Preparing for an ADHD assessment can help ensure the process is smooth, thorough, and accurate. At The Neurodevelopmental Clinic, we strive to make the experience as clear and stress-free as possible.
What to Expect Before Your Appointment
Once your assessment is booked, we will send you a series of forms and questionnaires to complete. These will help us gather essential background information, including:
Identity documents, such as proof of address and photographic ID to ensure we are supporting the right person.
Your developmental history, including childhood behaviours and early signs of ADHD.
Your medical, educational, and psychological history, as well as any past assessments or diagnoses.
Input from informants (e.g., a parent, guardian, spouse, teacher, or close friend) who can provide insight into your symptoms across different settings.
What You Can Do to Prepare
Gather relevant documents – Any previous medical or psychological reports, school records, or workplace accommodations can be helpful.
Think about past and present symptoms – Consider how ADHD symptoms have affected you throughout your life, including school, work, and relationships.
Bring a family member or close friend (if possible) – Someone who knew you well in childhood can provide additional details that may support an accurate assessment.
Write down key concerns or questions – This can help you feel prepared and ensure that all important topics are covered during your assessment.
After the Assessment
If you remember something important after the appointment, don’t worry! You can provide additional information via secure messaging or a follow-up call, ensuring that nothing is overlooked.
Who should complete my informant questionnaires?
When it comes to informant questionnaires for an ADHD assessment, there is no one-size-fits-all approach. The best informants are individuals who have observed your behaviours over a significant period and in different settings.
Choosing the Right Informant
The most suitable informants will depend on your age and life circumstances:
For children and adolescents: Parents, caregivers, teachers, or school staff who have seen patterns of behaviour over time.
For adults: A spouse, partner, close friend, employer, or long-term colleague who can provide insight into daily functioning.
Why Is an Informant Important?
ADHD symptoms often present differently in different environments, and others may notice behaviours that you don’t. However, informant input is only one piece of the assessment puzzle. We use multiple sources of information, including clinical interviews and standardised measures, to reach a detailed understanding of your experiences and presentation.
If you’re unsure who to ask, our clinicians can guide you in selecting the most appropriate informants based on your circumstances.
What treatment options are available for ADHD in the UK?
ADHD treatment in the UK typically includes medication, therapy, behavioural strategies, and lifestyle adjustments. The right approach depends on individual needs and preferences.
Medication
Medication is often a first-line treatment and can help manage core symptoms such as inattention, hyperactivity, and impulsivity. Commonly prescribed options include:
Stimulant medications (e.g., methylphenidate, lisdexamfetamine)
Non-stimulant medications (e.g., atomoxetine, guanfacine)
Medication is usually prescribed by a psychiatrist or specialist clinician and should be regularly monitored.
Therapeutic Support
Psychological interventions are important, particularly for those who prefer non-medication approaches or need additional support. These can include:
Cognitive Behavioural Therapy (CBT) – Helps develop coping strategies for managing ADHD-related difficulties.
Coaching and Skills Training – Focuses on organisation, time management, and goal-setting.
Parent Training – For children with ADHD, supporting parents in implementing effective strategies at home.
Lifestyle and Behavioural Strategies
Changes in daily routines and habits can significantly impact ADHD symptoms. These may include:
Sleep hygiene improvements – Managing common sleep difficulties in ADHD.
Dietary and exercise adjustments – Supporting brain function and emotional regulation.
Workplace or school accommodations – Implementing reasonable adjustments to improve focus and productivity.
How We Can Help
At The Neurodevelopmental Clinic, we offer a range of ADHD treatment options, including therapy and support strategies tailored to your unique challenges. We have partnerships with a number of associate prescribers and clinics who can support with medication queries. Our goal is to help you gain the tools and strategies needed to thrive in daily life.
What Happens If I don't receive an adhd diagnosis?
Not receiving an ADHD diagnosis doesn't mean your challenges aren’t real or valid. ADHD symptoms can sometimes overlap with other conditions, and our priority is to ensure you receive the most accurate understanding of your experiences.
If a diagnosis cannot be determined, we may recommend:
Further Assessment: In some cases, additional evaluations may be necessary to explore other factors that could be contributing to your difficulties.
Watchful Waiting: If symptoms are present but not meeting the full diagnostic criteria, we may suggest monitoring changes over time before making a final determination.
Exploring Other Explanations: Many mental health conditions—such as anxiety, depression, trauma, or sleep disorders—can present with symptoms similar to ADHD. If another condition better explains your difficulties, we will provide guidance on the most appropriate next steps.
Regardless of the outcome, your assessment report will include detailed recommendations to help you manage the challenges you’ve been experiencing. We will guide you to the right support—whether that’s ADHD-specific interventions or alternative strategies tailored to your needs.
How can I support a family member or friend with ADHD?
Supporting someone with ADHD starts with understanding.
Educating yourself about ADHD can help you move past common misconceptions—such as assuming children are simply “naughty,” teenagers are “irresponsible,” or adults are “disorganised.”
ADHD is a neurodevelopmental condition, not a personal failing.
Patience and compassion are key.
ADHD symptoms can vary significantly from person to person and across different settings. Some days may be more challenging than others, and external factors like stress, fatigue, or sensory overload can impact focus and emotional regulation. Being understanding and adaptable can go a long way in strengthening your relationship.
Practical ways to support someone with ADHD include:
✔ Encouraging structure and routine
✔ Helping with organisation and time management
✔ Offering gentle reminders for tasks and commitments
✔ Focusing on strengths and celebrating achievements
✔ Communicating openly and without judgment
It’s also important to take care of yourself. Supporting someone with ADHD can be demanding, and maintaining your own well-being ensures that you can continue to offer support in a sustainable way. Seeking your own support—whether through peer networks, therapy, or self-care—can help you stay balanced.
Remember, your support matters. Even small efforts to understand, encourage, and advocate for your loved one can make a world of difference in their journey with ADHD.
Still Have Questions?
If you have any further questions about the ADHD assessment process, or anything else related to ADHD or our clinic, please visit our contact us page.
We aim to respond to all queries within 48 hours!