The ASRS-v1.1 (Adult ADHD Self-Report Scale) Part A is a 6-item screener developed by researchers at Harvard Medical School and New York University, in collaboration with the World Health Organization. It is one of the most widely validated self-report screening tools for adult ADHD, used in population research across more than 10 countries.
ADHD is often missed in adults, particularly in women, people who mask their symptoms, and those who received a late diagnosis. A screener can help you understand your symptom pattern and start an informed conversation with a healthcare provider.
Your information is safe and private
Your answers are processed locally in your browser. No data is collected or sent to any server. No login account is required and results are available instantly. This test is for informational purposes only and does not constitute a clinical diagnosis.
Disclaimer
This test is based on the ASRS-v1.1 (Adult ADHD Self-Report Scale) and is for informational and educational purposes only. It is not a clinical diagnostic tool and does not constitute medical advice. ADHD is diagnosed through a comprehensive clinical assessment, not through a questionnaire. If you are concerned about your wellbeing, please consider speaking with a qualified healthcare professional.
The Adult ADHD Self-Report Scale (ASRS-v1.1) is a validated self-report screening instrument for ADHD in adults, developed by Kessler et al. in collaboration with the World Health Organization. Part A consists of the 6 items most predictive of an ADHD diagnosis, selected from a larger 18-item checklist based on data from a US national sample. The Part A screener has been used in epidemiological research across more than 10 countries.
Each of the 6 items is answered on a 5-point frequency scale (Never, Rarely, Sometimes, Often, Very Often). The items use different thresholds to identify clinically relevant responses:
A total of 4 or more positive indicators is considered highly consistent with a diagnosis of ADHD in adults. Fewer than 4 does not rule out ADHD, particularly if symptoms are present but do not meet the frequency threshold.
In the original validation study, the ASRS-v1.1 Part A had a sensitivity of 68.7% and a specificity of 99.5% for detecting ADHD at the 4-item threshold. The high specificity means false positives are rare, though some people with ADHD may score below the threshold, particularly those who mask symptoms or were diagnosed as adults. A clinical evaluation by a trained professional is required for a formal diagnosis.
ADHD in women is frequently underdiagnosed because symptoms can present differently. Women tend to show more inattentive symptoms and less overt hyperactivity, which are easier to overlook in standard assessments. The ASRS-v1.1 was validated across both sexes, but research suggests that women who mask their symptoms effectively may score below the threshold despite meeting diagnostic criteria. If your score is below threshold but you identify strongly with ADHD symptoms, a clinical evaluation is still worth pursuing.
No. All scoring happens locally in your browser using JavaScript. Your answers are never transmitted to any server, stored in a database, or shared with any third party. When you close the tab, the data is gone. OmLumi collects no personal information from this screener.
If you score 4 or more positive indicators, consider sharing your results with a doctor or mental health professional who has experience diagnosing adult ADHD. A diagnosis requires a comprehensive evaluation that looks at symptom history, onset in childhood, impairment across settings, and ruling out other causes. Even if your score is below threshold, it can be a useful starting point for a conversation with a healthcare provider.
Kessler RC, Adler L, Ames M, et al. The World Health Organization Adult ADHD Self-Report Scale (ASRS). Psychological Medicine. 2005;35(2):245-256. doi:10.1017/S0033291704002892
The ASRS-v1.1 is copyrighted by the President and Fellows of Harvard College and New York University. The 6-item Part A screener is available for non-commercial use.