ADHD Self-Screening Test (ASRS v1.1)

Take the World Health Organization's Adult ADHD Self-Report Scale — the most widely used ADHD screening tool. 18 questions, takes about 3 minutes. Your answers are 100% private and never leave your browser.

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About the ASRS v1.1

The Adult ADHD Self-Report Scale (ASRS v1.1) was developed by the World Health Organization (WHO) in collaboration with Dr. Ronald Kessler of Harvard Medical School. It is a validated 18-item screening instrument designed to help adults identify whether they may have symptoms consistent with ADHD. The first 6 questions (Part A) are the most predictive and are used as the primary screener. Parts A and B together provide a more complete symptom profile.

Important: This is a screening tool, not a diagnosis. A high score suggests you may benefit from a professional evaluation by a qualified healthcare provider (psychiatrist, psychologist, or GP with ADHD experience). Only a licensed professional can diagnose ADHD.

How Scoring Works

Each question is scored 0-4 based on symptom frequency. Part A (questions 1-6) is the primary screener — a score of 14 or higher on Part A suggests symptoms consistent with ADHD. The full 18-question score provides a more detailed picture. Higher scores indicate more symptoms, but severity and impairment must be assessed by a professional.

Who Should Take This Test?

This screening is designed for adults aged 18 and older who suspect they may have ADHD symptoms. It is especially relevant if you experience persistent difficulty with focus, organization, time management, impulsivity, or restlessness that impacts your daily life, work, or relationships.