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How is dyslexia diagnosed?

Dyslexia screening

Screening tests are designed to give an indication of possible dyslexic difficulties. They are not a diagnosis.

There are many different types of screening tests; in an education setting some are delivered by computer, others need to be administered by a teacher/SENCo. Some just give an estimate as to whether the child/person is likely to have dyslexic difficulties. A few offer a more detailed profile of strengths and weaknesses, which help inform an appropriate teaching strategy.

Where any screening test indicates a moderate or high probability of dyslexic difficulties, the best course of action is to follow up with a full diagnostic assessment. This would determine the precise nature of dyslexic and related difficulties.

Find out more about Diagnostic Assessments on the BDA Assessment webpage.

Online screening tools

Some of the screening tools available are:

Dyslexia+ Profiler

Do-IT Solutions, has worked in association with the British Dyslexia Association to deliver the free Dyslexia+ Screener. This is suitable if you are over 16, and can provide some quick tips and hints to help.

If the results suggest that you may have dyslexia, then you can choose to complete Dyslexia+ Profiler. There is a £20 charge for the assessment suite. As a result of completing Dyslexia+ Profiler, you will have a personalised and comprehensive report dependent on your responses.

Visit the Dyslexia+ Profiler.

Dyslexia+ Student Profiler

If you are a student then this package may be more suitable. This screener checks out the likelihood of dyslexia and traits of other related learning difficulties, such as dyspraxia/DCD, ADHD and autism spectrum disorder (ASD). The pack includes screening tools for study skills along with assessing areas such as spelling and working memory.

Once the process is completed, you will receive a personalised, comprehensive report with guidance and practical resources delivered in different ways to suit all learning styles.

An initial short questionnaire is free. The full screening package is £25 including VAT.

Visit the Dyslexia+ Student Profiler.

For everyone paying for the Profiler who comes through this website, a donation is made by Do-IT Solutions to the BDA.


Nessy Test

Nessy provide a free dyslexia test for 5 to 7 year olds called Dyslexia Test. This can help indicate whether any difficulties could be an indicator of dyslexia and should be investigated further.

Dyslexia Quest

This screening tool costs from £10 per year and is designed for children and young people covering the age ranges of 5.5, 5-7, 8-10 & 11-16. It is based on the tests of educational psychologists, mirroring the output that they would assess to determine the likelihood of dyslexia.

The Dyslexia Quest screening results are not a diagnosis of dyslexia but a way to identify possible areas of concern.

Visit the Dyslexia Quest website. Please contact with any related queries.

QS Dyslexia Tests (QS)

QS Dyslexia Tests (QS) provide two online products for dyslexia screening for young people and adults:

  • QuickScan Questionnaire (14+)
  • QuickScreen Dyslexia Test (17+)

The products are ideal for both:

  • individuals at home – single use payment and detailed report (£10 for QuickScan and £19.50 for QuickScreen) and
  • organisations – for their recruits, staff or students with a management portal, detailed reporting and annual license (starting from £250) – please ask for a two month free trial

Whether you are a personal user, educational establishment or workplace organisation, you have the option to use one or both products depending on your requirements and results.

Both easy-to-use online dyslexia tests will flag up indicators of dyslexia, providing you with a full report of your results and suggestions for training and development.

Visit the website here.

The products listed here are simply examples of some of the dyslexia screening products that are available, the BDA does not endorse any individual products. It is recommended that anyone wishing to explore the use of a screening tool pays close attention to the manual that accompanies such a product to ensure that it is fit for their purpose and will meet the needs of those being screened.