The ASRS (Adult ADHD Self-Report Scale) is a 6-item screening tool developed by the World Health Organization (WHO) for adult attention-deficit/hyperactivity disorder. Part A is the screener; it takes about 1-2 minutes and uses a shaded-box scoring method to flag symptoms in the clinical range.

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Q: How is the ASRS scored?

The ASRS Part A uses shaded-box scoring. Items 1-3 are flagged at 'Sometimes' or higher. Items 4-6 are flagged at 'Often' or higher. If 4 or more of the 6 items fall in the shaded range, the screen is positive for adult ADHD and a full clinical evaluation is recommended.

Q: Can adults have ADHD?

Yes. ADHD affects approximately 2.5% of adults. Many adults are not diagnosed until adulthood because their symptoms were attributed to other causes or masked by coping strategies. A comprehensive evaluation can confirm the diagnosis and identify the right treatment.

The ASRS is the WHO-developed adult ADHD screener. Six questions, about 1-2 minutes, instant result. Your answers never leave your device. A screening is not a diagnosis - it is a starting point for a conversation with a clinician.

Medically reviewed by Dr. Akinwande Akintola, MD, Supervisory Psychiatrist. Last reviewed July 2026.

Clinical validity: The ASRS Part A screener has 68.7% sensitivity and 99.5% specificity for adult ADHD (Kessler et al., Psychological Medicine, 2005). The very high specificity means a positive result is rarely a false alarm.

If you are in crisis, do not wait for a test score. Call or text 988 (Suicide & Crisis Lifeline, 24/7) or call 911.

Please answer the following questions about how you have felt and conducted yourself over the past 6 months.

Your answers never leave your device. Nothing is sent to any server.

1. How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?

2. How often do you have difficulty getting things in order when you have to do a task that requires organization?

3. How often do you have problems remembering appointments or obligations?

4. When you have a task that requires a lot of thought, how often do you avoid or delay getting started?

5. How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?

6. How often do you feel overly active and compelled to do things, like you were driven by a motor?

How is the ASRS scored?

The ASRS Part A uses "shaded box" scoring rather than a simple sum. Items 1-3 are flagged when the answer is "Sometimes" or higher. Items 4-6 are flagged when the answer is "Often" or higher. If 4 or more items fall in the shaded range, the screen is positive and a comprehensive ADHD evaluation is recommended.

What is the ASRS?

The Adult ADHD Self-Report Scale (ASRS v1.1) was developed by the World Health Organization (WHO) in collaboration with leading ADHD researchers. Part A (6 items) is the screening portion - the most predictive questions for adult ADHD. Part B (12 additional items) provides supplemental information but is not required for screening. This page uses Part A only.

Can adults have ADHD?

Yes. ADHD affects approximately 8.4% of children and 2.5% of adults in the United States. Many adults are diagnosed for the first time in adulthood, often after years of attributing their symptoms to laziness, disorganization, or other causes. A comprehensive evaluation can distinguish ADHD from anxiety, depression, sleep disorders, and thyroid conditions - all of which can mimic ADHD symptoms.

How accurate is the ASRS for detecting ADHD?

The ASRS Part A has exceptionally high specificity (99.5%), meaning very few people without ADHD will screen positive. Sensitivity is 68.7% - meaning it catches about two-thirds of adults with ADHD. If you screen negative but are still concerned, a full clinical evaluation is the definitive next step.

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If you are in crisis or thinking about harming yourself, call or text 988 (Suicide & Crisis Lifeline) or call 911. Both are available 24/7.