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Adult ADHD Self-Report Scale (ASRS v1.1) — Part A Screener (6 items).
The ASRS was developed by the World Health Organization (WHO) in conjunction with Dr. Ronald Kessler at Harvard Medical School. This 6-item screener is the validated short form used to identify adults who may have ADHD. It takes about 1 minute.
The ASRS was developed by the World Health Organization (WHO) in conjunction with Dr. Ronald Kessler at Harvard Medical School. This 6-item screener is the validated short form used to identify adults who may have ADHD. It takes about 1 minute.
For each question, select the response that best describes how you have felt and conducted yourself over the past 6 months.
Important: The ASRS is a screening tool, not a diagnostic instrument. A positive screen suggests that a comprehensive ADHD evaluation may be warranted. ADHD diagnosis requires a thorough clinical assessment including developmental history, functional impact analysis, and ruling out other explanations. Dr. Ong is himself neurodivergent and brings both clinical and lived expertise to ADHD assessment.
→ See all seven screening tools — and what each one is and isn’t useful for
Also available: DASS-21 — Depression, Anxiety & Stress screening for adults → For children ages 4–17: SDQ screening tool for parents →The ASRS v1.1 Screener was developed by the World Health Organization (WHO) and is freely available for clinical and research use. © World Health Organization.