A comprehensive ADHD screening tool based on the Adult ADHD Self-Report Scale. Evaluate your symptoms of inattention, hyperactivity, and impulsivity.
Attention Deficit Hyperactivity Disorder (ADHD) affects approximately 4.4% of adults worldwide, yet many remain undiagnosed. This free online ADHD test is based on the World Health Organization's Adult ADHD Self-Report Scale (ASRS-v1.1) screening criteria. It evaluates key symptoms including difficulty concentrating, restlessness, impulsivity, and organizational challenges. While this test cannot provide a clinical diagnosis, it can help you understand whether your experiences align with common ADHD symptoms and whether seeking professional evaluation may be beneficial.
This test is for educational and informational purposes only. It is not a diagnostic tool and should not replace professional medical advice. If you are experiencing distress, please consult a licensed healthcare provider.
Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental condition that affects how the brain manages attention, impulse control, and activity levels. It's not a character flaw or a lack of willpower — it's a difference in how the brain is wired.
ADHD is typically divided into three presentations: predominantly inattentive (difficulty focusing, following through, and staying organised), predominantly hyperactive-impulsive (restlessness, acting without thinking), and combined type (both sets of symptoms). Most adults with ADHD have the combined or inattentive type.
Around 5-7% of adults are estimated to have ADHD, though many were never diagnosed as children. Diagnosis rates in adults have risen significantly over the past decade as awareness has improved.
Adult ADHD often looks different to the childhood presentation. Hyperactivity tends to become internal — a restless, racing feeling — rather than physical. Common symptoms include chronic disorganisation, difficulty starting tasks, losing track of conversations, forgetting appointments, and struggling to prioritise.
Many adults with ADHD also experience emotional dysregulation: intense frustration, quick anger, or low frustration tolerance that seems out of proportion. Rejection-sensitive dysphoria (an intense emotional reaction to perceived criticism) is also very common, though it's not yet part of the formal diagnostic criteria.
ADHD frequently co-occurs with anxiety, depression, and sleep disorders — which can make it harder to identify. If you're managing multiple overlapping conditions, it's worth raising ADHD specifically with a doctor rather than assuming everything is explained by one diagnosis.
This ADHD screening is based on the Adult ADHD Self-Report Scale (ASRS-v1.1), developed by the World Health Organization (WHO) and validated in multiple clinical studies. It's one of the most widely used tools for initial ADHD screening in adults.
The test covers the two core ADHD symptom domains: inattention and hyperactivity-impulsivity. Your score gives an indication of whether your symptom pattern is consistent with ADHD criteria — it does not provide a diagnosis.
A high score means your symptoms are worth discussing with a GP or psychiatrist. ADHD is diagnosed through a structured clinical interview, not a questionnaire alone. But a screening score gives you something concrete to bring to that conversation.