The ASRS v1.1 (Adult ADHD Self-Report Scale) is an 18-item screening questionnaire developed in conjunction with the World Health Organization to identify symptoms of ADHD in adults. Part A — just 6 questions — serves as a validated rapid screener. A result of 4 or more items in the clinical range is highly consistent with adult ADHD and warrants a follow-up evaluation with a qualified clinician.
Medical Disclaimer: This is a screening tool, not a diagnosis. Only a licensed healthcare professional can diagnose ADHD. If you have concerns, please discuss your results with a doctor or mental health specialist.
Part A — Screening Questions
Over the past 6 months, how often have you experienced the following?
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?
Part B — Full Symptom Assessment
(12 additional questions)
Part B questions provide clinicians with a fuller picture of your symptom profile. They are informational — the clinical screening threshold is based only on Part A.
7 How often do you make careless mistakes when working on boring or difficult projects?
8 How often do you have difficulty keeping your attention when doing boring or repetitive work?
9 How often do you have difficulty concentrating on what people say to you, even when they are speaking directly to you?
10 How often do you misplace or have difficulty finding things at home or at work?
11 How often are you distracted by activity or noise around you?
12 How often do you leave your seat in meetings or other situations where you are expected to remain seated?
13 How often do you feel restless or fidgety?
14 How often do you have difficulty unwinding and relaxing when you have time to yourself?
15 How often do you find yourself talking too much when you are in social situations?
16 When you're in a conversation, how often do you find yourself finishing the sentences of the people you are talking to before they can finish them themselves?
17 How often do you have difficulty waiting your turn in situations when turn-taking is required?
18 How often do you interrupt others when they are busy?
Full ASRS v1.1 Results
Complete 18-item profile
How to Use the ADHD ASRS Screener
The Adult ADHD Self-Report Scale (ASRS v1.1) was developed in partnership with the World Health Organization and validated across large population samples. It is widely used by primary care physicians, psychiatrists, and psychologists as a starting point for ADHD assessment in adults. This free tool walks you through all 18 items and scores Part A automatically as you go.
Step 1: Answer the Part A Screening Questions
Part A contains 6 questions that cover the most clinically predictive ADHD symptoms. For each question, choose how often you have experienced the described behavior over the past 6 months. Options range from Never (0) to Very Often (4). The light purple-shaded options represent the clinical threshold for each item — answering in the shaded range means that item counts toward your screening score.
Step 2: Check Your Part A Result
As soon as you answer all 6 Part A questions, a result card appears. The ASRS scoring rule is straightforward: if 4 or more of the 6 items meet or exceed their individual threshold, the result is Highly consistent with ADHD in adults — the language used in the original WHO scoring guide. Fewer than 4 is below the clinical threshold but does not rule out ADHD, especially if symptoms cause functional impairment.
Step 3: Complete Part B for a Fuller Picture
Expand the Part B section to answer the remaining 12 questions. Part B is not part of the official screener threshold, but it provides important context about inattentive and hyperactive-impulsive symptom dimensions. Clinicians use the full 18-item profile to guide diagnostic interviews and distinguish ADHD subtypes (predominantly inattentive, predominantly hyperactive-impulsive, or combined presentation).
Understanding the Subscales
The 18 ASRS items map to two symptom clusters. Inattentive symptoms (Questions 1–3 and 7–11) cover difficulty finishing tasks, disorganization, forgetfulness, poor concentration, and distractibility. Hyperactive-impulsive symptoms (Questions 4–6 and 12–18) cover avoidance of effortful tasks, fidgeting, restlessness, difficulty relaxing, excessive talking, interrupting, and impulsive behavior. Both subscale totals are shown in the Full Results section.
What to Do Next
If your Part A result is positive, consider sharing your responses with a healthcare provider. ADHD in adults is frequently underdiagnosed — particularly in women and in people who developed coping strategies early in life. A clinical evaluation typically involves a diagnostic interview, review of childhood history, and sometimes neuropsychological testing. Effective treatments include behavioral strategies, coaching, and medication when appropriate.
FAQ
Is this ADHD ASRS screener free to use?
Yes, this ASRS v1.1 screener is completely free with no account or signup required. All processing runs entirely in your browser — no data is ever sent to a server.
Is my data private and safe?
Yes. All your answers and results are calculated locally in your browser using JavaScript. Nothing is stored, transmitted, or logged anywhere. When you close or refresh the page, all responses are gone.
What is the ASRS v1.1?
The Adult ADHD Self-Report Scale (ASRS v1.1) is an 18-item screening questionnaire developed in conjunction with the World Health Organization (WHO) and the Workgroup on Adult ADHD. It asks about symptom frequency over the past 6 months. Part A (6 items) functions as a rapid screener; Part B (12 items) provides additional clinical context.
How is Part A scored?
Part A contains 6 questions. Each has a 'shaded threshold' — the minimum frequency that counts as clinically significant. Questions 1–3 use 'Sometimes or more' as the threshold; Questions 4–6 use 'Often or more.' If 4 or more of the 6 items meet or exceed their threshold, the result is 'Highly consistent with ADHD in adults' per the original WHO scoring guidelines.
What do the inattentive and hyperactive subscales mean?
The 18 ASRS items map to two ADHD symptom dimensions. Items 1–9 (Part A questions 1–3 and Part B questions 7–12) reflect inattentive symptoms such as difficulty focusing, forgetfulness, and disorganization. Items 10–18 reflect hyperactive-impulsive symptoms such as restlessness, talking excessively, and interrupting others. Both subscores are shown for informational purposes.
Can the ASRS diagnose ADHD?
No. The ASRS is a screening instrument, not a diagnostic tool. A positive screening result means your symptom pattern is consistent with ADHD and that further evaluation by a qualified clinician is warranted. Only a licensed healthcare professional can diagnose ADHD and recommend treatment.
How is the ASRS different from the PHQ-9?
The PHQ-9 screens for depressive disorder and uses a cumulative total score. The ASRS screens for adult ADHD and uses a threshold-based approach — each item has a specific frequency cutoff, and Part A counts how many items exceed their individual threshold rather than summing raw scores.
What should I do if my Part A result is positive?
A positive Part A result (4 or more items in the clinical range) suggests it is worthwhile to discuss your symptoms with a healthcare provider or mental health professional. ADHD is highly treatable, and many adults only receive a diagnosis in adulthood. Consider bringing your full ASRS results to your appointment.