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Online ADHD screening tools can help people recognise whether ADHD might explain their experiences. They are not diagnostic. This guide explains how the tools work, what the scores mean and what steps to take after completing one.
Online ADHD screening tools can help people identify whether their experiences are consistent with ADHD and whether it is worth seeking a formal assessment. Many people, particularly those diagnosed in adulthood, describe completing a screening tool as the first time they felt their difficulties might be explained by ADHD. However, online screening tools are not diagnostic assessments and a positive result does not confirm an ADHD diagnosis. A formal ADHD assessment carried out by a qualified clinician is required to confirm the diagnosis.
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Online ADHD screening tools ask questions about attention regulation, impulsivity, hyperactivity, organisation, time management and other ADHD-related traits. Validated tools have been tested in research to determine how well they distinguish people with ADHD from those without. A high score on a validated tool suggests a formal assessment may be worth pursuing.
The Adult ADHD Self-Report Scale (ASRS) is a validated 18-item self-report screening tool developed in collaboration with the World Health Organisation. The ASRS-v1.1 Screener uses 6 items from the full scale and is widely used as a brief first-stage screening tool in clinical practice. A positive ASRS screen is an indication for further assessment rather than a confirmation of diagnosis.
The Conners Rating Scale is a widely used validated tool for assessing ADHD-related behaviours in children. It is completed by parents and teachers and covers inattention, hyperactivity and other ADHD-related behaviours. The Conners is used in clinical assessment settings rather than as a simple online quiz, but versions of it and tools based on it are used widely in ADHD screening for children.
Online screening tools have several limitations. They rely on self-report and may be affected by how a person understands their own difficulties. ADHD shares features with other conditions including anxiety, depression and sleep disorders, and symptoms of these conditions may produce positive scores on ADHD screening tools. A positive screening result is a prompt to seek formal assessment, not a confirmation of ADHD.
If an online ADHD screening tool suggests ADHD may be relevant to your experiences, the next step is to see your GP and discuss a referral for a formal ADHD assessment. Share the tool you used and your score. In many areas, self-referral to ADHD assessment services is possible. NHS waiting times are often long: private ADHD assessment is an option for those who prefer not to wait.
Online ADHD screening tools are used by adults questioning whether they might have ADHD, by parents questioning whether their child might have ADHD and by professionals as a first-stage screening step before formal referral. Many adults diagnosed with ADHD in adulthood describe a screening tool as the moment when their difficulties finally made sense.
For related information see our articles on ADHD Diagnosis Process and Getting an ADHD Assessment in the UK.
No. Online ADHD quizzes are screening tools, not diagnostic assessments. A positive result suggests formal assessment may be helpful but does not confirm an ADHD diagnosis. Only a qualified clinician carrying out a formal assessment can diagnose ADHD.
The Adult ADHD Self-Report Scale (ASRS) is a validated ADHD screening tool developed with the World Health Organisation. The 6-item ASRS screener is widely used in clinical practice as a brief first-stage screen. A positive ASRS result is an indication for further assessment rather than a diagnosis of ADHD.
A high score on a validated ADHD screening tool is a reason to see your GP and discuss a referral for a formal ADHD assessment. Share the tool and your score with your GP. In some areas, self-referral is available. Private assessment is also an option. A high screening score is the beginning of the process, not a confirmation of diagnosis.
Visit our Understanding ADHD hub for more guides on signs, diagnosis, types, medication, executive function and co-occurring conditions.
The information in this article is provided for educational purposes only and is not intended as medical advice. If you have concerns about ADHD or any neurodevelopmental condition, speak to a qualified healthcare professional. SENDhelp Education Limited accepts no responsibility or liability for any loss or damage arising from reliance on this content. Any links to third-party websites are provided for convenience only and do not constitute endorsement of their content.
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