WHO - Adult ADHD Test: Self-Report Scale

Adult ADHD affects millions of people worldwide, yet many go undiagnosed for years. If you find yourself struggling with focus, organisation, or impulsivity, you’re not alone. This free, evidence-based screening tool can help you understand whether your experiences align with common ADHD patterns.

The WHO Adult ADHD Self-Report Scale (ASRS v1.1) is a clinically validated adult ADHD test used by healthcare professionals worldwide. It takes just 5 minutes to complete and provides immediate, personalised results. While this screening cannot diagnose ADHD, it can help you decide whether to speak with a doctor or mental health professional about your symptoms.

Remember: ADHD is a neurodevelopmental condition, not a character flaw. Understanding your cognitive patterns is the first step toward finding strategies that work for you.

1. Is this an ADHD diagnosis?
No. This screening identifies patterns consistent with ADHD, but only a qualified healthcare professional can provide a formal diagnosis. Use these results as a conversation starter with your doctor.

2. How accurate is the ASRS v1.1?
Research shows the ASRS has strong sensitivity and specificity for identifying adult ADHD when used as part of a comprehensive assessment. However, self-report tools have limitations and should always be interpreted by a clinician.

3. Should I see a doctor about my results?
If you scored 24 or higher, or if your symptoms significantly impact your daily life, work, or relationships, consider consulting a healthcare professional. They can conduct a thorough evaluation and discuss treatment options.

4. Can I take this test multiple times?
Yes, but your symptoms should be assessed over the past six months for accurate results. Taking it too frequently may not provide meaningful insights.

5. What if I disagree with my results?
As far as an adult adhd test is concerned, self-report questionnaires rely on personal perception. If you feel your results don’t match your experience, discuss your concerns with a mental health professional who can provide objective assessment.

6. Does this test work for everyone?
The ASRS is designed for adults (18+). ADHD symptoms can overlap with anxiety, depression, stress, or other conditions, so professional evaluation is essential for accurate understanding.

7. How do I interpret my score?
Your result is a total across the eighteen questions, each scored from 0 (Never) to 4 (Very Often), so it ranges from 0 to 72. A higher total means more frequent ADHD-type experiences over the past six months. As a general guide, a score of 24 or above is worth discussing with a clinician, and the first six questions (Part A of the ASRS) carry the most weight as a screen. A score is a signal, not a label, and two people with the same number can have very different lives behind it.

8. What is the difference between Part A and Part B?
The ASRS has two parts. Part A is the first six questions and is the core screener, the part clinicians rely on most because those items predict adult ADHD best. Part B is the remaining twelve questions, which add detail about how symptoms show up day to day. If your Part A answers cluster around Often and Very Often, that alone is worth raising with a professional.

9. What can I do while I wait to see a doctor?
Practical changes help regardless of a formal diagnosis. The most reliable is to stop relying on memory for storage: capture tasks and ideas the moment they appear, by voice or note, so your attention is free for the work itself. Building consistent routines, reducing the number of small daily decisions, and doing one thing at a time also lower the load that ADHD makes heavier.

10. Is adult ADHD different from ADHD in children?
Often it is. The visible hyperactivity associated with childhood ADHD frequently turns inward in adults, showing up as restlessness, racing thoughts, or difficulty switching off rather than physical movement. Adults are also more likely to have spent years building coping strategies that mask symptoms, which is one reason adult ADHD is so often missed. The everyday impact tends to centre on organisation, time, and follow through.

11. Can other conditions look like ADHD?
Yes, which is why a screen is only a starting point. Chronic stress, poor sleep, anxiety, depression, and thyroid problems can all produce inattention and forgetfulness that resemble ADHD. A proper assessment looks at your history and rules these out, which a questionnaire cannot do. If your result surprises you in either direction, that is a reason to seek a professional view rather than settle the question yourself.