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158 claims. Each was checked against its source during drafting; none has had expert review yet.

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There have been many definitions of dyslexia over the past century and debate about how to define it continues.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
IDA's 2002 definition describes dyslexia as a specific learning disability, neurobiological in origin, characterized by difficulties with accurate and/or fluent word recognition and poor spelling and decoding, typically resulting from a deficit in the phonological component of language that is often unexpected relative to other cognitive abilities and effective classroom instruction, with possible secondary effects on comprehension, vocabulary and background knowledge.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
IDA released a revised definition in 2025, its first update since 2002.Established guidanceLD@school (Learning Disabilities Association of Ontario) (2025) Charity or professional bodyDyslexia in adults: what the definitions say
The 2025 IDA definition keeps dyslexia as a difficulty in word reading and/or spelling involving accuracy, speed or both depending on orthography, arising from multiple interacting genetic, neurobiological and environmental influences, on a continuum of severity.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
The 2025 IDA definition lists secondary consequences including effects on written expression, academic achievement, psychological well-being and employment opportunities.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
The NCIL question-and-answer guide was developed under a US Department of Education grant.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
The Rose (2009) definition is widely used in UK education, and the BDA has adopted the 2025 Delphi definition.Regional law or ruleCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchBritish Dyslexia Association (2025) Charity or professional bodyDyslexia in adults: what the definitions say
The UK Delphi panel of 58 included academics, specialist teachers, educational psychologists and people with dyslexia, and accepted 42 consensus statements.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
The Delphi definition begins "Dyslexia is a set of processing difficulties that affect the acquisition of reading and spelling" and says difficulties exist on a continuum, that fluency and spelling difficulties are a key marker across languages and age groups, and that the nature and trajectory depend on multiple genetic and environmental influences.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
In February 2025 the BDA said it would adopt the Delphi definition and that people diagnosed under the previous definition would continue to meet the criteria.Regional law or ruleBritish Dyslexia Association (2025) Charity or professional bodyDyslexia in adults: what the definitions say
Comparison of IDA 2002, IDA 2025, Rose 2009 and Delphi 2025 on core difficulty, causes named, continuum, and co-occurrence.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
DSM-5 uses "specific learning disorder in reading" and ICD-11 uses "developmental learning disorder with impairment in reading"; ICD-11 requires reading below expectations for age and intellectual ability while DSM-5 moves away from the ability-attainment discrepancy.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Some older children and adults with dyslexia continue to have word-level reading problems while others mainly have difficulties with reading and writing fluency and spelling.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Prioritizing fluency implies dyslexia can be present when some reading and spelling attainments are in the average range, increasingly accepted when assessing adults and those with extensive support.Preliminary or mixed findingsCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions saySelf-reflection, screening, and assessment are different things
Manifestations of dyslexia can change over time depending on context, and after intervention and support reading may no longer be experienced as disabling though it may remain challenging.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
In adults, difficulties may emerge as the pace and demands of work increase or where compensatory strategies no longer work or are too tiring to sustain.Preliminary or mixed findingsHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
The NHS states that dyslexia does not affect intelligence.Established guidanceNHS (England) Government or lawDyslexia in adults: what the definitions say
A discrepancy between intellectual ability and literacy attainment is a useful indicator but not sufficient for a diagnosis on its own.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
The manifestations of dyslexia differ depending on how a language is written.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions saySearching for an online dyslexia test
In transparent orthographies such as Spanish, Finnish or Italian, accuracy often develops relatively quickly and difficulties may be most evident in speed; in English and Danish they often appear in both accuracy and fluency.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
Environmental conditions and dyslexia are not mutually exclusive; a person can have dyslexia and also experience poverty, interrupted instruction, limited access to books or linguistic variation.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
NCIL panelists call for assessment that does not exclude children from poverty or children learning English as an additional language.Practical suggestionNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
Research cited by Holden et al. found children in more affluent areas of England had higher chances than those in deprived areas of being identified with specific learning difficulties.Regional law or ruleHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Reported prevalence rates vary between about 5% and 20% depending on the cut-off used; some researchers argue prevalence is better described as a distribution of severity.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Dyslexia frequently co-occurs with other developmental difficulties including developmental language disorder, ADHD, developmental coordination disorder and dyscalculia; more research is needed on why.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchBritish Dyslexia Association Charity or professional bodyDyslexia in adults: what the definitions saySearching for an online dyslexia test
Visual stress is a separate condition from dyslexia but can make text harder to process.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Developmental dyslexia is distinguished from acquired dyslexia, which has a neurological cause such as brain injury.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
SASC guidance says SpLDs can co-exist with overlapping conditions and assessors should refer to another practitioner if necessary.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyDyslexia in adults: what the definitions sayWhat a professional dyslexia assessment may involve
In the Delphi definition, literacy attainment in dyslexia is weak in relation to age, standard teaching and instruction, and other attainments.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
Not every person who finds reading difficult should be considered dyslexic; identification is interpreted within instructional and developmental context.Established guidanceNational Center on Improving Literacy (developed under a US Department of Education grant) (2026) Government or lawDyslexia in adults: what the definitions say
The NHS says a GP can check for other conditions such as hearing problems and may suggest an eye test.Regional law or ruleNHS (England) Government or lawDyslexia in adults: what the definitions say
SPELD NSW advises checking eyesight and hearing before seeking a dyslexia assessment.Regional law or ruleSPELD NSW Charity or professional bodyDyslexia in adults: what the definitions sayWhat a professional dyslexia assessment may involve
The SASC 2025 report format asks assessors to record vision (including a recent sight test), hearing, linguistic history, access to schooling, attendance and number of schools attended.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyDyslexia in adults: what the definitions sayWhat a professional dyslexia assessment may involveSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
The SASC format asks assessors to note test conditions including health, attention, anxiety and fatigue, and says English as an additional language or a complex linguistic history could help explain results.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyDyslexia in adults: what the definitions sayWhat a professional dyslexia assessment may involveSelf-reflection, screening, and assessment are different things
Some people only discover they are dyslexic in adulthood, which the BDA suggests may relate to misconceptions about dyslexia.Established guidanceBritish Dyslexia Association Charity or professional bodyDyslexia in adults: what the definitions say
In older children and adults, early and persisting literacy difficulties may have been missed or masked, and these histories should be investigated.Established guidanceHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchDyslexia in adults: what the definitions saySelf-reflection, screening, and assessment are different things
In 2011 NICHD reported that many school systems used an IQ-reading discrepancy model to allocate specialized reading instruction, so children with dyslexia and lower IQ scores might not qualify, and that the study called the model into question.Regional law or ruleNICHD (2011) Government or lawDyslexia in adults: what the definitions say
A study of parents identified inadequate teacher training and insufficient school funding as perceived barriers to diagnosis, and provision in England has been described as a postcode lottery.Preliminary or mixed findingsHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchDyslexia in adults: what the definitions say
US Department of Justice guidance says an absence of previous formal testing accommodations does not preclude a candidate from receiving them.Regional law or ruleUS Department of Justice, Civil Rights Division (ADA.gov) Government or lawDyslexia in adults: what the definitions say
Screening tests and checklists can indicate possible dyslexic difficulties but cannot provide a diagnosis.Established guidanceBritish Dyslexia Association Charity or professional bodySelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
AUSPELD says online screening tools cannot provide a formal diagnosis of a specific learning disorder such as dyslexia.Established guidanceAUSPELD (Australian Federation of SPELD Associations) Charity or professional bodySelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
LDA describes adult screening as possibly including an informal interview, brief test, career interest inventories, or review of medical, school or work histories, while evaluation involves formal testing.Established guidanceLearning Disabilities Association of America Charity or professional bodySelf-reflection, screening, and assessment are different things
Lefly and Pennington (2000) reported that a revised Adult Reading History Questionnaire showed high internal consistency and stability in two adult samples (84 adults from a familial dyslexia study and parents of 107 children), correlated with reading measures, and helped distinguish reading disability diagnoses.Preliminary or mixed findingsLefly and Pennington. Journal of Learning Disabilities 33(3): 286-296 (doi:10.1177/002221940003300306) (2000) Peer-reviewed researchSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
The Dyslexia Adult Checklist study included 400 adults, half self-identified as dyslexic; its authors state screening tools are not diagnostic and should only signal people for further assessment.Preliminary or mixed findingsStark, Elalouf, Soldano, Franzen and Johnson. Dyslexia 31(1): e1797 (doi:10.1002/dys.1797) (2024) Peer-reviewed researchSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
At the original cut-off the checklist had 76% sensitivity and 88% specificity; a lower cut-off gave 91.5% sensitivity and 80% specificity.Preliminary or mixed findingsStark, Elalouf, Soldano, Franzen and Johnson. Dyslexia 31(1): e1797 (doi:10.1002/dys.1797) (2024) Peer-reviewed researchSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
Limitations of the checklist study: dyslexia status was self-reported and most participants were recruited from university campuses.Preliminary or mixed findingsStark, Elalouf, Soldano, Franzen and Johnson. Dyslexia 31(1): e1797 (doi:10.1002/dys.1797) (2024) Peer-reviewed researchSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
STEC generally does not review materials designed for screening.Regional law or ruleSpLD Assessment Standards Committee (SASC) Charity or professional bodySelf-reflection, screening, and assessment are different things
The BDA says dyslexia can only be formally diagnosed through a diagnostic assessment by a certified assessor.Regional law or ruleBritish Dyslexia Association Charity or professional bodySelf-reflection, screening, and assessment are different things
Multiple sources of information should be combined in assessment, and standardized test results provide objectivity, consistency and reliability alongside professional judgment.Established guidanceHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchSelf-reflection, screening, and assessment are different thingsSearching for an online dyslexia test
SASC asks for diagnostic conclusions based on converging evidence from history, background, observation, discussion and test results, related to a referenced definition, with a report containing a diagnostic decision and recommendations.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodySelf-reflection, screening, and assessment are different thingsWhat a professional dyslexia assessment may involve
Information about whether an adult had literacy difficulties in the early school years supports identification.Established guidanceHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchSelf-reflection, screening, and assessment are different things
Individuals with reading difficulties should be referred for specialist assessment if there is consistent lack of progress despite targeted assistance.Established guidanceHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchSelf-reflection, screening, and assessment are different things
All individuals with literacy difficulties require appropriate, targeted intervention, monitoring and resources.Established guidanceCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchSelf-reflection, screening, and assessment are different things
Dyslexia assessment is required for many purposes and its content should be aligned to its purpose.Established guidanceHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchWhat a professional dyslexia assessment may involve
Assessors choose tests in response to the individual and the reason for referral; the report states the reason for assessment.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyWhat a professional dyslexia assessment may involve
The SASC format covers health and developmental history, family history, linguistic history, educational and work history, and the individual's voice; adult assessments should uncover factors that limited literacy over the lifetime.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyHolden, Kirby, Snowling, Thompson and Carroll. Dyslexia 31(1): e1800 (doi:10.1002/dys.1800) (2025) Peer-reviewed researchWhat a professional dyslexia assessment may involve
SASC asks for visual history and visual difficulties questionnaires ideally before assessment, with referral to a vision practitioner if needed.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyWhat a professional dyslexia assessment may involve
The SASC test list groups tests into cognitive areas (ability/reasoning, memory, phonological awareness/memory/rapid naming, processing speed) and attainment (reading, spelling, writing, mathematics); some are restricted to psychologists.Regional law or ruleSpLD Test Evaluation Committee (STEC) of SASC (2024) Charity or professional bodyWhat a professional dyslexia assessment may involve
In the US, testing for learning disabilities usually covers cognitive potential, information processing and current achievement, typically six to eight hours over two or three sessions (LD OnLine).Regional law or ruleKathleen Ross Kidder, LD OnLine (WETA) Charity or professional bodyWhat a professional dyslexia assessment may involve
STEC reviews tests on criteria including age and educational level appropriateness and standardization sample size and spread.Regional law or ruleSpLD Assessment Standards Committee (SASC) Charity or professional bodyWhat a professional dyslexia assessment may involveSearching for an online dyslexia test
SASC recommends assessment sessions be contained within four weeks unless there are unusual circumstances.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyWhat a professional dyslexia assessment may involve
SASC remote assessment guidance applies from October 2026, and some publishers have not permitted remote use of their tests.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2026) Charity or professional bodyWhat a professional dyslexia assessment may involve
LDA says the assessment produces a statement of results including any LD identified, with recommendations for work, school or daily living.Established guidanceLearning Disabilities Association of America Charity or professional bodyWhat a professional dyslexia assessment may involve
The SASC report begins with a diagnostic decision; insufficient evidence must be stated and explained; feedback is good practice; recipients agreed in writing in advance; onward referral where relevant.Regional law or ruleSpLD Assessment Standards Committee (SASC) (2025) Charity or professional bodyWhat a professional dyslexia assessment may involve
The SASC 2025 report format will be required from 1 January 2027.Regional law or ruleSpLD Assessment Standards Committee (SASC) Charity or professional bodyWhat a professional dyslexia assessment may involve
In the US, LDA says only qualified professionals can conduct adult LD assessments; LD OnLine lists clinical psychologists, school psychologists and neuropsychologists among those who can diagnose and notes licensing varies by state.Regional law or ruleLearning Disabilities Association of America Charity or professional bodyKathleen Ross Kidder, LD OnLine (WETA) Charity or professional bodyWhat a professional dyslexia assessment may involve
US adults can seek evaluation at university-affiliated clinics and psychology departments and state vocational rehabilitation agencies; VR agencies sometimes provide LD assessments at no cost during intake.Regional law or ruleUnderstood.org Charity or professional bodyLearning Disabilities Association of America Charity or professional bodyWhat a professional dyslexia assessment may involve
Testing entities should defer to documentation from a qualified professional who is licensed or otherwise properly credentialed.Regional law or ruleUS Department of Justice, Civil Rights Division (ADA.gov) Government or lawWhat a professional dyslexia assessment may involve
Most agencies that grant accommodations have their own documentation policy.Regional law or ruleKathleen Ross Kidder, LD OnLine (WETA) Charity or professional bodyWhat a professional dyslexia assessment may involve
In England a dyslexia assessment is usually done by an educational psychologist or specialist teacher, not a doctor, and most people pay.Regional law or ruleNHS (England) Government or lawWhat a professional dyslexia assessment may involve
SASC recommends specialist teacher assessors hold an APC from the BDA, Dyslexia Guild or PATOSS, renewed every three years; practitioner psychologists are HCPC-registered.Regional law or ruleSpLD Assessment Standards Committee (SASC) Charity or professional bodySpLD Assessment Standards Committee (SASC) Charity or professional bodyBritish Dyslexia Association Charity or professional bodyWhat a professional dyslexia assessment may involve
Dyslexia Scotland prefers to say assessing or identifying dyslexia rather than diagnosing.Regional law or ruleDyslexia Scotland Charity or professional bodyWhat a professional dyslexia assessment may involve
For students living in England, DSA evidence for an SpLD is a diagnostic assessment from a practitioner psychologist or suitably qualified specialist teacher (APC holder), following SASC formats and tests; the student usually pays, and there is no lower age limit on the report.Regional law or ruleGOV.UK Government or lawSpLD Assessment Standards Committee (SASC) Charity or professional bodySpLD Test Evaluation Committee (STEC) of SASC (2024) Charity or professional bodyWhat a professional dyslexia assessment may involveSearching for an online dyslexia test
Dyslexia Ireland provides adult assessments through psychologists and says there is no free state provision for adults.Regional law or ruleDyslexia Ireland Charity or professional bodyWhat a professional dyslexia assessment may involve
The DARE 2026 guide required a psychological assessment report or school statement plus two literacy attainment scores at or below the 10th percentile from testing on or after 1 February 2024.Regional law or ruleDisability Access Route to Education (DARE), via CAO (2026) Charity or professional bodyWhat a professional dyslexia assessment may involve
In Ontario, diagnosing a learning disability is a controlled act limited to psychologists and psychological associates registered with the College of Psychologists of Ontario, and not every registrant assesses LDs.Regional law or ruleLearning Disabilities Association of Ontario Charity or professional bodyWhat a professional dyslexia assessment may involveSelf-reflection, screening, and assessment are different things
SPELD NSW says dyslexia is diagnosed by a psychologist, uses the term specific learning disorder in reading, and its assessments are by a registered psychologist and available to adults; AUSPELD lists SPELD organizations in several states.Regional law or ruleSPELD NSW Charity or professional bodySPELD NSW Charity or professional bodyAUSPELD (Australian Federation of SPELD Associations) Charity or professional bodyWhat a professional dyslexia assessment may involve
LDA suggests asking whether the evaluator has tested many adults, will explain the report, and will recommend where to get further help.Practical suggestionLearning Disabilities Association of America Charity or professional bodyWhat a professional dyslexia assessment may involve
The FTC warns health apps may not be covered by HIPAA and some use data for research or ads or share or sell it; it advises reading the privacy notice and checking settings.Regional law or ruleUS Federal Trade Commission, Consumer Advice (2021) Government or lawSearching for an online dyslexia test
Reading fluency and spelling difficulties are a key marker of dyslexia in the Delphi definition; a self-report quiz asks about these rather than measuring them with standardized tests.Practical suggestionCarroll, Holden, Kirby, Thompson, Snowling and the Dyslexia Delphi Panel. Journal of Child Psychology and Psychiatry (doi:10.1111/jcpp.14123) (2025) Peer-reviewed researchSearching for an online dyslexia test
On iPhone, spoken-text options are under Settings > Accessibility > Read & Speak; Speak Selection adds a Speak button for selected text and Speak Screen reads the whole screen after a two-finger swipe down from the top, with controls for pausing, rate and Speak on Touch.Practical suggestionApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
Accessibility Reader on iPhone is a full-screen reading view with settings for text and background color, font, size, line, word and character spacing, and spoken playback with highlighting; it opens from the Accessibility Shortcut, Control Center or the share menu.Practical suggestionApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
On a Mac, Speak selection is under System Settings > Accessibility > Read & Speak, and the default shortcut to start and stop speaking selected text is Option-Esc.Practical suggestionApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
Safari Reader shows an article without navigation and clutter; on iPhone it is opened with Show Reader and can be set to Use Reader Automatically, and on Mac it is opened from the Smart Search field with adjustable background, font and zoom.Practical suggestionApple (2026) Product documentationApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
Immersive Reader in Microsoft Edge opens from the address bar icon or F9 and includes Read Aloud, text size and spacing, page themes, Line focus, Picture dictionary and Translate; Microsoft says it was originally designed for readers with dyslexia and dysgraphia and that anyone can use it.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
Microsoft Edge Immersive Reader page themes include options inspired by Irlen Spectral Filters.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
In Word for Windows, View > Immersive Reader offers Column Width, Page Color, Line Focus, Text Spacing, Syllables and Read Aloud.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
Review > Read Aloud reads Word documents on Windows and macOS in Microsoft 365, Office 2019 and Office 2021.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
Android Select to Speak is turned on under Settings > Accessibility > Select to Speak; selected text can also be read with Read aloud from the More menu without turning it on.Practical suggestionGoogle Accessibility Help Product documentationReading tools and accessibility features: what is built in and what the research says
Android Reading mode is a separate Play Store app that needs Android 9 or later, runs only on phones, offers display and audio settings, and does not currently support PDFs, emails, chat messages or social media feeds.Practical suggestionGoogle Accessibility Help Product documentationReading tools and accessibility features: what is built in and what the research says
Chrome reading mode on a computer opens from the right-click menu or More > More tools > Reading mode and lets users change typeface, font size, color theme, line height and letter spacing, and read text aloud with highlighting.Practical suggestionGoogle Chrome Help Product documentationReading tools and accessibility features: what is built in and what the research says
iPhone dictation is enabled under Settings > General > Keyboard > Enable Dictation and supports spoken punctuation, spelling words letter by letter and editing commands.Practical suggestionApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
Windows voice typing starts with the Windows logo key + H and needs an internet connection and a working microphone.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
Dictate in Word (Home > Dictate) is available to Microsoft 365 subscribers.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
Word Editor, opened from the Review tab, checks spelling, grammar and some style issues, and suggestions can be read aloud.Practical suggestionMicrosoft Support Product documentationReading tools and accessibility features: what is built in and what the research says
On iPhone, Settings > Accessibility > Display & Text Size includes Larger Text and Bold Text, and a Text Size control can be added to Control Center.Practical suggestionApple (2026) Product documentationReading tools and accessibility features: what is built in and what the research says
Accessibility Reader, Word Immersive Reader and Chrome reading mode each include controls for line or letter spacing.Practical suggestionApple (2026) Product documentationMicrosoft Support Product documentationGoogle Chrome Help Product documentationReading tools and accessibility features: what is built in and what the research says
The U.S. National Library Service for the Blind and Print Disabled is free, and eligibility includes people certified by a competent authority as having a reading disability; certifiers include doctors, educators, social workers and librarians.Regional law or ruleNational Library Service for the Blind and Print Disabled, Library of Congress Government or lawReading tools and accessibility features: what is built in and what the research says
Bookshare lists reading disabilities such as dyslexia among qualifying conditions for adults and requires confirmation from a professional with appropriate expertise.Regional law or ruleBookshare (Benetech) Charity or professional bodyReading tools and accessibility features: what is built in and what the research says
Bookshare says it is free for U.S. students with a qualifying disability such as dyslexia, and an IEP or 504 plan is not required.Regional law or ruleBookshare (Benetech) Charity or professional bodyReading tools and accessibility features: what is built in and what the research saysReading while studying: managing reading loads, notes and exams
RNIB Bookshare names people unable to read print effectively because of dyslexia among those who qualify; it is free for UK schools and colleges, charges universities, learning centres and tutoring services, and learners access it through their institution.Regional law or ruleRNIB Bookshare Charity or professional bodyRNIB Bookshare Charity or professional bodyRNIB Bookshare Charity or professional bodyReading tools and accessibility features: what is built in and what the research saysReading while studying: managing reading loads, notes and exams
A 2018 meta-analysis of 22 studies (grade 3 and above, including some postsecondary and adult samples) found an average weighted effect of 0.35 (95% CI 0.14 to 0.56) of text-to-speech and read-aloud tools on reading comprehension for students with reading disabilities, with study design moderating results; the authors say the tools may assist comprehension and more research is needed.Preliminary or mixed findingsWood SG, Moxley JH, Tighe EL, Wagner RK. Journal of Learning Disabilities 51(1):73-84. doi:10.1177/0022219416688170 (2018) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research saysReading while studying: managing reading loads, notes and exams
In a single-subject study of 12 elementary students with dyslexia, OpenDyslexic did not improve reading rate or accuracy compared with Arial and Times New Roman, and no participant reported preferring it.Preliminary or mixed findingsWery JJ, Diliberto JA. Annals of Dyslexia 67(2):114-127. doi:10.1007/s11881-016-0127-1 (2017) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research says
Two experiments with more than 300 children found the Dyslexie font did not make reading faster or more accurate, and most children preferred Arial or Times New Roman.Preliminary or mixed findingsKuster SM, van Weerdenburg M, Gompel M, Bosman AMT. Annals of Dyslexia 68(1):25-42. doi:10.1007/s11881-017-0154-6 (2018) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research says
A 2016 systematic review of 51 published items found most studies of colored overlays and lenses had high or uncertain risk of bias, gains were small or similar to placebo, and concluded their use for reading difficulties cannot be endorsed.Established guidanceGriffiths PG, Taylor RH, Henderson LM, Barrett BT. Ophthalmic and Physiological Optics 36(5):519-544. doi:10.1111/opo.12316 (2016) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research says
A 2009 joint statement led by the American Academy of Pediatrics and a 2011 joint technical report said scientific evidence does not support tinted or colored lenses and filters for improving educational performance in learning disabilities.Established guidanceAmerican Academy of Pediatrics; American Academy of Ophthalmology; American Association for Pediatric Ophthalmology and Strabismus; American Association of Certified Orthoptists. Pediatrics 124(2):837-844 (2009) Peer-reviewed researchHandler SM, Fierson WM, et al., for the American Academy of Pediatrics and partner eye-care organizations. Pediatrics 127(3):e818-e856 (2011) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research says
The British Dyslexia Association says visual difficulties or discomfort should be discussed with an optician regardless of whether a person seeks an assessment.Practical suggestionBritish Dyslexia Association Charity or professional bodyReading tools and accessibility features: what is built in and what the research says
In England, the NHS says dyslexia assessments are usually done by an educational psychologist or a dyslexia specialist, not a doctor, and most people have to pay.Regional law or ruleNHS (England) Government or lawPreparing for a dyslexia assessment: what to gather and what to ask
The BDA says that before testing there is usually an informal chat to gather background information.Regional law or ruleBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The International Dyslexia Association's 2021 assessment guidelines list main concerns, educational history, behavioral and emotional history, peer and social skills, sleep, health, family history and social history as parts of the history, including family history of learning difficulties and past hearing problems.Established guidanceTridas E, Cardenas-Hagan E, White J, Elbeheri G, Cheesman E. International Dyslexia Association (2021) Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
For its service, the BDA says adults should have had a sight test within the last two years and an up-to-date hearing check is helpful; unchecked visual difficulties can lead to an inconclusive outcome.Regional law or ruleBritish Dyslexia Association Charity or professional bodyBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA service requires at least seven years living in an English-speaking country and regularly speaking English, because its tests are heavily influenced by English-speaking culture.Regional law or ruleBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA says assessors need information about previous assessments or study support to avoid repeating tests, which may make results invalid.Established guidanceBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA's employer guide notes that some adults were diagnosed as children but no longer have evidence of the diagnosis.Regional law or ruleBritish Dyslexia Association (2023) Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA says both specialist teachers and psychologists can diagnose dyslexia, and a psychologist may be engaged where someone has more complex or multiple needs.Regional law or ruleBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
U.S. Department of Justice guidance says documentation requests for testing accommodations must be reasonable, proof of past testing accommodations in similar settings is generally sufficient, and an absence of previous formal accommodations does not preclude receiving them.Regional law or ruleU.S. Department of Justice, Civil Rights Division (ADA.gov) Government or lawPreparing for a dyslexia assessment: what to gather and what to askReading while studying: managing reading loads, notes and exams
In England, a Disabled Students' Allowance application for a specific learning difficulty needs a diagnostic assessment from a practitioner psychologist or suitably qualified specialist teacher, and applicants must be eligible for Student Finance England support.Regional law or ruleGOV.UK Government or lawPreparing for a dyslexia assessment: what to gather and what to askReading while studying: managing reading loads, notes and exams
SASC recommends that specialist teacher assessors hold a current Assessment Practising Certificate, renewed every three years, refers psychologists to the HCPC, and publishes a register of current APC holders.Regional law or ruleSpLD Assessment Standards Committee (SASC) Charity or professional bodySpLD Assessment Standards Committee (SASC) Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
JCQ says an external assessor's report can only be used as evidence for access arrangements if the assessor liaised with the school or college and received the paperwork before the assessment.Regional law or ruleJoint Council for Qualifications (JCQ) (2025) Government or lawPreparing for a dyslexia assessment: what to gather and what to askReading while studying: managing reading loads, notes and exams
The U.S. Office for Civil Rights says colleges may set reasonable documentation standards, some require more than others, and documentation may include the date of diagnosis, how it was reached and the professional credentials.Regional law or ruleU.S. Department of Education, Office for Civil Rights Government or lawPreparing for a dyslexia assessment: what to gather and what to askReading while studying: managing reading loads, notes and exams
The BDA says that when an employer pays for an assessment, it shares only a summary report without test scores, and only with written permission.Regional law or ruleBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA says its diagnostic assessments usually take up to three hours, cover reading, writing and spelling and skills such as phonological awareness, processing speed and memory, and that scoring and analysis take time before the written report.Regional law or ruleBritish Dyslexia Association Charity or professional bodyPreparing for a dyslexia assessment: what to gather and what to ask
The BDA's 2023 employer guide suggests agendas and information in advance of meetings, and lists delegated note-taking, note-taking software and recording devices as possible adjustments.Practical suggestionBritish Dyslexia Association (2023) Charity or professional bodyReading at work: practical approaches and asking for adjustments
The BDA's employer guide says the diagnosis is not necessarily important for providing reasonable adjustments, the impact on everyday tasks is what matters, and a diagnostic report should not be a requirement for receiving adjustments.Practical suggestionBritish Dyslexia Association (2023) Charity or professional bodyReading at work: practical approaches and asking for adjustments
The ADA employment provisions enforced by the EEOC cover employers with 15 or more employees, define disability as an impairment that substantially limits a major life activity (or a record of, or being regarded as having, one), list accommodations such as modified equipment, adjusted training materials and readers, and exclude accommodations causing undue hardship.Regional law or ruleU.S. Equal Employment Opportunity Commission Government or lawReading at work: practical approaches and asking for adjustments
EEOC guidance says accommodation requests can be in plain English, need not mention the ADA, need not be in writing; employers may ask for reasonable documentation when the need is not obvious and may choose among effective accommodations, giving primary consideration to the employee preference.Regional law or ruleU.S. Equal Employment Opportunity Commission Government or lawReading at work: practical approaches and asking for adjustments
The Job Accommodation Network offers free, confidential guidance, and its learning disability page lists reading-related ideas such as text readers, screen reading software and optical character recognition.Regional law or ruleJob Accommodation Network (JAN) Government or lawReading at work: practical approaches and asking for adjustments
The Equality Act 2010 defines disability as a physical or mental impairment with a substantial and long-term adverse effect on the ability to carry out normal day-to-day activities.Regional law or rulelegislation.gov.uk (2010) Government or lawReading at work: practical approaches and asking for adjustments
Section 20 of the Equality Act 2010 requires reasonable steps to avoid substantial disadvantage, including auxiliary aids and providing information in an accessible format.Regional law or rulelegislation.gov.uk (2010) Government or lawReading at work: practical approaches and asking for adjustments
GOV.UK says employers must make reasonable adjustments for disabled workers, including trainees and contract workers.Regional law or ruleGOV.UK Government or lawReading at work: practical approaches and asking for adjustments
The Equality Act 2010 forms part of the law of England and Wales and of Scotland, and only listed provisions extend to Northern Ireland.Regional law or rulelegislation.gov.uk (2010) Government or lawReading at work: practical approaches and asking for adjustments
Access to Work is for people aged 16 or over in paid work in England, Scotland or Wales; GOV.UK names ADHD or dyslexia as examples, says a formal diagnosis is not needed to apply, and says the grant is not repaid and does not cover adjustments employers must legally make.Regional law or ruleGOV.UK Government or lawGOV.UK Government or lawReading at work: practical approaches and asking for adjustments
In Northern Ireland, nidirect says employers must meet the Disability Discrimination Act and have a duty to make reasonable adjustments for covered employees; a separate Access to Work scheme is run by the Department for Communities and excludes adjustments employers must legally make.Regional law or rulenidirect (Northern Ireland Government) Government or lawnidirect (Northern Ireland Government) Government or lawReading at work: practical approaches and asking for adjustments
The Irish Employment Equality Act 1998 defines disability to include a condition that results in a person learning differently; IHREC says employers must take effective practical steps unless this imposes a disproportionate burden, and complaints go to the Workplace Relations Commission with strict time limits.Regional law or ruleIrish Statute Book (1998) Government or lawIrish Human Rights and Equality Commission (IHREC) Government or lawReading at work: practical approaches and asking for adjustments
Under the Canadian Human Rights Act, federally regulated employers have a duty to accommodate up to undue hardship; workers need not disclose a specific diagnosis, only workplace barriers, and cannot insist on the ideal option if a reasonable one is offered.Regional law or ruleCanadian Human Rights Commission Government or lawCanadian Human Rights Commission Government or lawReading at work: practical approaches and asking for adjustments
The Ontario Human Rights Code definition of disability includes a learning disability, and the Ontario Human Rights Commission says organizations can generally ask about the nature of a disability as opposed to a medical diagnosis.Regional law or ruleOntario Human Rights Commission Charity or professional bodyOntario Human Rights Commission Charity or professional bodyReading at work: practical approaches and asking for adjustmentsReading while studying: managing reading loads, notes and exams
The Australian Disability Discrimination Act 1992 defines disability to include a disorder or malfunction that results in the person learning differently, and refers to reasonable adjustments; the Australian Human Rights Commission says it covers earning a living and getting an education, alongside the Fair Work Act 2009 and state and territory agencies.Regional law or ruleFederal Register of Legislation, Australian Government (1992) Government or lawAustralian Human Rights Commission Government or lawReading at work: practical approaches and asking for adjustmentsReading while studying: managing reading loads, notes and exams
JobAccess, maintained by the Australian Department of Social Services, offers a free, confidential advice line on 1800 464 800 and information on the Employment Assistance Fund.Regional law or ruleJobAccess, Australian Government Department of Social Services Government or lawReading at work: practical approaches and asking for adjustments
The Office for Civil Rights lists note takers, recording devices and extended testing time among academic adjustments, and says colleges need not change the substantive content of a test.Regional law or ruleU.S. Department of Education, Office for Civil Rights Government or lawReading while studying: managing reading loads, notes and exams
JCQ describes access arrangements as letting students show what they know without changing the demands of the exam, gives 25% extra time as an example, says a diagnosis alone does not entitle a student to them, and says the school or college decides, using its appointed assessor; further education students should record needs on enrollment forms.Regional law or ruleJoint Council for Qualifications (JCQ) (2025) Government or lawReading while studying: managing reading loads, notes and exams
The Office for Civil Rights says disclosure to a college is voluntary but required to receive an academic adjustment; an IEP or 504 plan is generally not sufficient documentation on its own; and neither the high school nor the college must pay for a new evaluation.Regional law or ruleU.S. Department of Education, Office for Civil Rights Government or lawReading while studying: managing reading loads, notes and exams
AHEAD guidance treats the student's self-report as primary documentation alongside staff observation and third-party records, and says no legislation or regulation requires documentation to be obtained to seek reasonable accommodations, though colleges may request a reasonable level.Regional law or ruleAssociation on Higher Education And Disability (AHEAD) Charity or professional bodyReading while studying: managing reading loads, notes and exams
In England, DSA depends on individual needs rather than household income, is not repaid, and involves a needs assessment after an eligibility letter.Regional law or ruleGOV.UK Government or lawReading while studying: managing reading loads, notes and exams
SAAS 2026-2027 DSA notes say there is no age limit, first-year applications need diagnostic evidence and a needs assessment report, and SAAS will not cover diagnosis costs, though institutions may help from discretionary funds.Regional law or ruleStudent Awards Agency Scotland (SAAS) (2026) Government or lawReading while studying: managing reading loads, notes and exams
UCAS guidance says DSA in Wales is handled by Student Finance Wales and a specific learning difficulty needs a diagnostic assessment.Regional law or ruleUCAS Charity or professional bodyReading while studying: managing reading loads, notes and exams
In Northern Ireland, nidirect says DSA covers specific learning difficulties such as dyslexia and does not have to be repaid.Regional law or rulenidirect (Northern Ireland Government) Government or lawReading while studying: managing reading loads, notes and exams
Section 91 of the Equality Act 2010 places duties on further and higher education institutions toward students, with extent in England, Wales and Scotland.Regional law or rulelegislation.gov.uk (2010) Government or lawReading while studying: managing reading loads, notes and exams
NICHD says it is not involved in setting definitions or guidelines for diagnosing reading disorders.Established guidanceEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (2020) Government or lawWhat a professional dyslexia assessment may involve
The University of Pennsylvania expects a diagnostic interview covering developmental, medical, academic, family, psychosocial and employment history, including the language spoken at home.Regional law or ruleWeingarten Center, University of Pennsylvania UniversityWhat a professional dyslexia assessment may involve
US university documentation guidelines name aptitude or cognitive ability, academic achievement and information processing, and Penn says a diagnosis should not rest on any single test or subtest.Regional law or ruleWeingarten Center, University of Pennsylvania UniversityServices to Students with Disabilities, California State University, San Bernardino (2022) UniversityWhat a professional dyslexia assessment may involve
NICHD describes providers using a series of tests of memory, spelling, visual perception and reading.Established guidanceEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (2020) Government or lawWhat a professional dyslexia assessment may involve
Norm-referenced tests describe performance relative to others who took the same test; US university guidelines ask for tests normed on adults.Established guidanceERIC, Institute of Education Sciences, US Department of Education Peer-reviewed researchWeingarten Center, University of Pennsylvania UniversityServices to Students with Disabilities, California State University, San Bernardino (2022) UniversityWhat a professional dyslexia assessment may involve
The York Adult Assessment-Revised was normed on 106 adults without dyslexia and checked against 20 adults with dyslexia.Preliminary or mixed findingsWarmington, Stothard and Snowling. Journal of Research in Special Educational Needs 13(1): 48-56 (2013) Peer-reviewed researchWhat a professional dyslexia assessment may involve
Queen Mary University of London says the diagnostic assessments its disability service arranges are done remotely and take around three hours.Regional law or ruleDisability and Dyslexia Service, Queen Mary University of London UniversityWhat a professional dyslexia assessment may involve
A 2017 meta-analysis of 12 crossover studies in adults found verbal tasks unaffected by videoconference administration, a picture-naming test slightly lower, and other results too mixed to combine.Preliminary or mixed findingsBrearly TW, Shura RD, Martindale SL, et al. Neuropsychology Review 27(2):174-186 (2017) Peer-reviewed researchWhat a professional dyslexia assessment may involve
A 2017 systematic review of assistive technology for people aged 14 and older (38 intervention studies) found the largest effect for word processing with spell and grammar checks, small group-level effects for text-to-speech, and speech-to-text studies too varied to pool.Preliminary or mixed findingsPerelmutter, McGregor and Gordon. Computers & Education 114: 139-163 (2017) Peer-reviewed researchReading tools and accessibility features: what is built in and what the research says
In a 2012 study, adult self-ratings of reading tracked literacy test scores closely but missed some adults with low literacy.Preliminary or mixed findingsSnowling, Dawes, Nash and Hulme. Dyslexia 18(1): 1-15 (2012) Peer-reviewed researchSelf-reflection, screening, and assessment are different things
The University of Pennsylvania expects an adult evaluation interview covering developmental, medical, academic, family, psychosocial and employment history, including the language spoken at home.Regional law or ruleWeingarten Center, University of Pennsylvania UniversityPreparing for a dyslexia assessment: what to gather and what to ask