ADHD Self-Test (ASRS-v1.1)
The WHO Adult ADHD Self-Report Scale — a validated 6-question screener. 100% private, processed locally.
Adult ADHD Self-Report Scale
Version 1.1 (ASRS-v1.1) — Part A Screener
Developed by the World Health Organization (WHO) in conjunction with Kessler et al. at Harvard Medical School. This 6-question screener is the most widely validated adult ADHD screening instrument in clinical research.
How it works
- 1. Answer 6 questions about your experiences over the past 6 months
- 2. Rate each from "Never" to "Very Often"
- 3. Get your score with research-backed interpretation
⏱️ Takes about 1 minute · 🔒 100% private — nothing sent to any server
Analyzing your responses...
ASRS-v1.1 Scoring Ranges
Understanding the ASRS-v1.1 Screener
The Adult ADHD Self-Report Scale (ASRS-v1.1) is a screening questionnaire developed by the World Health Organization (WHO) in collaboration with Ronald C. Kessler, Ph.D. and colleagues at Harvard Medical School. Published in 2005, it is the most widely used adult ADHD screening instrument in both clinical and research settings.
The full ASRS contains 18 questions covering all DSM-5 criteria. However, research demonstrated that the first 6 questions alone (Part A) provide the highest predictive accuracy. This tool implements the validated Part A screener with Likert-based scoring.
Research Validation
Validated in a landmark 2005 study in Psychological Medicine (Kessler et al., 2005). The 6-question screener demonstrated sensitivity of 68.7% and specificity of 99.5%, outperforming the full 18-question version for initial screening. Cited in over 2,000 peer-reviewed publications.
Likert-Based Scoring
This tool uses the 0–24 Likert-based scoring developed by Ustün et al. (2017) which assigns 0–4 points per question. Research shows superior psychometric properties compared to the original dichotomous scoring. A score of ≥14 indicates further clinical evaluation is warranted.
What is ADHD?
Attention-Deficit/Hyperactivity Disorder is a neurodevelopmental condition characterized by persistent inattention, hyperactivity, and impulsivity that interfere with daily functioning. It affects approximately 4.4% of adults worldwide and is recognized in both DSM-5 and ICD-11.
Privacy & Data
Your responses are processed entirely in your browser using JavaScript. Nothing is sent to any server. No cookies, no tracking, no storage. Your mental health data stays on your device. When you close this tab, your answers disappear permanently.
Take Control of Your Mental Health
Understanding your symptoms is the first step to getting help. This validated screening tool gives you the data you need to have an informed conversation with a healthcare professional. If you suspect you may have ADHD, early identification can lead to significantly improved outcomes.
Frequently Asked Questions
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