ADHD Test Free Online
A confidential 18-question self-assessment for adults. Get instant results across inattention and hyperactivity dimensions — no signup, no email required.
New to ADHD? Read How to get tested · Testing cost · Managing adult ADHD
Take the next step on your ADHD journey
Whether you're considering an evaluation, just received a diagnosis, or learning to manage symptoms — these guides walk you through what comes next.
How to Get Tested for ADHD: A Step-by-Step Guide for Adults
How Much Does ADHD Testing Cost in 2026?
How Do Doctors Test for ADHD? Inside the Evaluation
How to Manage Adult ADHD: 5 Research-Backed Pillars (2026 Guide)
ADHD and Sleep: Why You Can't Sleep and How to Fix It
ADHD Burnout: Signs, Causes & a Realistic Recovery Plan
Understanding the ADHD Self-Assessment
What is the ASRS test?
The Adult ADHD Self-Report Scale (ASRS-v1.1) is a validated 18-item questionnaire created by the World Health Organization in partnership with leading ADHD researchers from Harvard Medical School and New York University. It is one of the most widely used screening tools for adult attention-deficit/hyperactivity disorder and is referenced in clinical guidelines around the world. The questions map directly onto the DSM-5 criteria for ADHD and cover two symptom domains: inattention (difficulty focusing, forgetfulness, disorganization) and hyperactivity-impulsivity (restlessness, fidgeting, acting without thinking). Each item asks how often a behavior has occurred during the past six months, on a five-point scale from "Never" to "Very Often." Together your answers produce a structured snapshot of how ADHD-like symptoms show up in your daily life.
Who is this test for?
This free online ADHD test is designed for adults aged 18 and older who suspect they may have undiagnosed ADHD, who were diagnosed as a child and want to re-evaluate symptoms, or who are simply curious about how their attention and energy patterns compare with clinical criteria. It is especially useful for people who struggle with chronic procrastination, missed deadlines, mental restlessness, emotional reactivity, or trouble finishing what they start. The screener is not appropriate for children; children require a different assessment administered by a qualified clinician. It is also not a replacement for a professional diagnosis — only a licensed psychologist, psychiatrist, or physician can formally diagnose ADHD.
What your score means
Your result is split into two parts. Part A contains the six questions that research has shown to be the most predictive of an adult ADHD diagnosis — if four or more of these are marked in the highlighted range, your symptoms are considered "highly consistent" with ADHD and a professional evaluation is strongly recommended. Part B contains the remaining twelve questions and provides additional context about the breadth and intensity of your symptoms across inattentive and hyperactive-impulsive presentations. A high score does not mean you definitely have ADHD, and a low score does not rule it out — symptoms can be masked by coping strategies, anxiety, or depression. Use the result as a starting point for an informed conversation with a healthcare provider, and bring your answers with you to your appointment.
About this ADHD Test
WHO Adult ASRS-v1.1 Screening Tool
The Adult ADHD Self-Report Scale (ASRS-v1.1) is an 18-item screening instrument developed in collaboration with the World Health Organization. It helps identify adults who may have symptoms consistent with ADHD.
Your responses are processed entirely in your browser — nothing is sent to any server. No account, no email, no tracking of answers.
Adult ADHD often goes undiagnosed for years. Common signs include chronic procrastination, difficulty finishing tasks, restlessness, impulsive decisions, forgetfulness, and trouble organizing daily life. This free ADHD test gives you a structured starting point to understand whether your experiences align with clinically recognized symptoms of attention-deficit/hyperactivity disorder.
Frequently Asked Questions
How long does it take?+
About 3 minutes. There are 18 short questions and your answer auto-advances to the next.
Is it really free?+
Yes — completely free, no signup, no ads in the test, fully private.
What do I do with my result?+
If you scored high, share the result with a healthcare provider as a starting point for conversation.