ABOUT ADHD
ADHD Assessment & Diagnosis
Are you struggling with focus, restlessness, or disorganisation? We’re here to help you understand your brain and unlock your potential.
Thrive ADHD ASSESSMENT
Why Choose Thrive for ADHD Testing?
At Thrive ADHD Treatment, we combine clinical expertise with a person-centred approach to ADHD assessments & testing. Our team of qualified clinicians and psychologists specialise in ADHD assessments in the UK. We focus on you – your experiences, strengths, challenges and goals.
ADHD specialist assessors
You’ll be assessed by our ADHD specialist independent prescribers.
NICE guidelines
We follow National Institute for Health and Care Excellence (NICE) guidelines.
Evidence-based practice
We use up-to-date, evidence-based diagnostic criteria and standardised tools.
Confidential & non-judgemental
We provide a confidential assessment process that explores your needs in a supportive, non-judgmental environment.
Holistic understanding
We don’t just tick boxes, we look at mental health, environment, life stages and how ADHD might be affecting you.
Clear, actionable diagnosis & feedback
You’ll get a comprehensive report, practical recommendations, follow-up support options, and a personalised diagnosis, treatment & management plan.
Thrive ADHD ASSESSMENT
What is ADHD?
Attention-Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental condition that affects how people focus, control impulses, and regulate activity levels. It’s lifelong, but how it shows up can vary widely depending on age, gender, life circumstances and support.
Having ADHD doesn’t mean someone can’t succeed. Many people with ADHD are creative, energetic, and hyper-focused when doing something that truly interests them.
ADHD isn’t ‘just bad behaviour’ or laziness. It’s rooted in brain differences in areas such as attention, executive function (planning, organising, shifting focus) and impulse control.
Thrive ADHD Support
Types of ADHD
We use current diagnostic models to identify the main presentations of ADHD:
Predominantly Inattentive
You may have difficulty focusing, completing tasks, and following instructions. You are forgetful, disorganised, and easily distracted.
Predominantly Hyperactive/Impulsive
You may be restless, fidgety, have difficulty staying seated, talk excessively and interrupt others, act without thinking, and make impulsive decisions without considering consequences.
Combined Presentation
This type includes symptoms from both inattentive and hyperactive/impulsive symptoms. You may experience challenges from both categories.
Each person’s experience may vary over time and across situations: you might notice more inattentive symptoms in work or study settings, and more hyperactive/impulsive ones in social or home environments.
Symptoms of ADHD
ADHD can look different in different people, but some common signs include:
Inattention symptoms
- Trouble staying focused on tasks or conversations
- Frequent careless mistakes, losing items, and forgetting appointments
- Difficulty organising work or managing time
- Avoidance of tasks that require sustained mental effort
- Easily distracted by external stimuli or unrelated thoughts
Hyperactivity / Impulsivity symptoms
- Fidgeting, restlessness, tapping feet or fingers
- Difficulty staying seated or quiet when expected
- Talking excessively, interrupting, and blurting out answers
- Trouble waiting for one’s turn, rushing into things without thinking
It’s important to remember: having some of these occasionally doesn’t mean ADHD. Diagnosis depends on the duration, the setting – e.g. home, school/work, social life and degree of impairment in daily functioning.
Child ADHD Diagnosis
ADHD in Children
In children, ADHD often shows as high energy, difficulty settling down, forgetfulness, distractibility, or impulsive behaviour. You might notice:
- Struggles to follow multi-step instructions or complete homework
- Frequent shifts of attention, jumping from one activity to another
- Difficulty waiting or taking turns, blurting out replies
- Emotional reactivity or frustration when demands increase
- Trouble playing quietly, always ‘on the go’ or climbing – even when it’s not appropriate
Early assessment can help children get access to strategies, educational support and structure to thrive – rather than just getting labelled as ‘bad behaved’ or ‘lazy’.
Adult ADHD Diagnosis
ADHD in Adults
In adults, ADHD can present quite differently. Some adults discover their ADHD only later in life, after years of under-achievement, missed deadlines, relationship difficulties or anxiety/depression. Common adult experiences include:
- Chronic lateness or disorganisation (e.g. missing appointments, losing paperwork)
- Difficulty switching between tasks or finishing long projects
- Procrastination, or starting many things but struggling to complete them
- Impulsivity in spending, decision-making, or interrupting conversations
- Restlessness, trouble relaxing, ‘in the head’ hyperactivity
- Low self-esteem, existential frustration or ‘why can’t I just be normal’ distress
An adult diagnosis can bring clarity, self-compassion and access to practical tools such as time-management strategies, coaching, therapy or medication where appropriate.
ADHD Testing
Free Adult ADHD self-report screening scale
Adult ADHD Self-Report Scale (ASRS-v1.1) screen scoring
Mark your answers on both Part A and Part B of the Symptom Checklist Score.
If four or more marks appear in the darkly shaded boxes in Part A then you have symptoms highly consistent with ADHD in adults and further investigation is warranted.
The frequency scores on Part B provide additional cues.
Book Your ADHD Assessment Today
If you’re wondering whether ADHD might be influencing your life, Thrive is here to help. Book your ADHD assessment today to begin your journey toward clarity, understanding and practical solutions.
