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Evidence Guide
16 min read

Dyslexia

Dyslexia is about accurate, fluent word reading and spelling — not reversed letters or a visual learning style. This guide separates what is known from what is myth, and sets out the teaching and adjustments that actually help.

Reading time
16 min read
Age range
All primary (EYFS–KS2)
Evidence level
High
An open book resting on a wooden primary school table beside a pencil and reading glasses in soft window light.
Leader guidanceFor leaders

This is a curriculum issue before it is a SEND issue

The strongest protection a school can offer children with dyslexia is excellent, consistent literacy teaching for everyone, with rapid, structured catch-up for those who fall behind. The EEF's literacy guidance reports and its rating of phonics as high impact for very low cost make that a leadership priority rather than an intervention question.

The 2026 Neurodivergence Task and Finish Group report — recommendations to DfE, not statutory requirements — argues for earlier identification of strengths and needs in the setting and for stronger workforce knowledge. For literacy, that translates straightforwardly into assessment that catches children early and staff who know what to do about it.

MoreFor leaders

Staff knowledge and development

Teach the model of reading

Staff who understand decoding, fluency, language comprehension and their interaction can diagnose in the moment. Staff who only know programmes cannot.

Include Key Stage 2 and subject teaching

Reading difficulty does not end at Year 2, and the curriculum becomes more text-dependent exactly as support often thins out.

Train those delivering intervention properly

Fidelity and skill matter more than which programme is purchased. Untrained delivery is one of the commonest reasons intervention shows no impact.

Correct the myths in training

Letter reversal, visual learning styles, overlays, fonts. Staff repeat these in good faith and families act on them.

Make adjustment a whole-staff expectation

Every teacher, every subject, every supply cover — not an English department matter.

AssessmentFor leaders

Systems, assessment and resourcing

  • Early screening and regular fluency checks, with a clear threshold that triggers action rather than monitoring.
  • Timetabled intervention slots that do not remove children from the teaching they most need.
  • Books matched to phonic knowledge, in sufficient quantity, and age-respectful for older pupils.
  • Assistive technology available, maintained, and taught — not stored in a cupboard.
  • Marking and homework policies that do not penalise transcription when the objective is something else.
  • Access arrangements aligned with normal classroom practice.
  • Information transfer at transition that names what works, not just the diagnosis.
ProvisionFor leaders

Evaluating whether provision is working

  • Component skill data — decoding, fluency, spelling — not reading ages alone.
  • Progress of the lowest 20% of readers as a specific, reported measure.
  • Attainment across the wider curriculum for pupils with literacy difficulties, which shows whether adjustments are real.
  • Participation: are these pupils reading in class, contributing, taking part in the same curriculum?
  • Wellbeing and self-concept, gathered through pupil voice.
  • Intervention impact evaluated per programme, with the willingness to stop what is not working.
  • Parent experience, including whether they understand what is in place and why.
The measure that matters

Not how many children are on an intervention, but whether the children who could not read a year ago can read now — and whether the ones who still cannot are nonetheless learning the rest of the curriculum.

MoreFor leaders

Policy context, stated carefully

  • Current statutory guidance: SEND Code of Practice (2015), where dyslexia sits within cognition and learning; the Equality Act duty to make reasonable adjustments.
  • Current professional guidance: the Rose report (2009) remains the reference point for identification and teaching in England; NHS information for families.
  • Evidence reviews: EEF literacy guidance reports and Toolkit strands; the DfE-commissioned UCL rapid evidence review on cognition and learning (2025), which is explicitly not government policy.
  • Recommendations: the independent Neurodivergence Task and Finish Group report (February 2026).
  • Proposed reform: ongoing SEND reform. Do not present proposals as current requirements to staff or families.
ResearchFor leaders

Evidence & sources

The teaching does not wait for the label

A child who is struggling to read needs high-quality, structured teaching now. That is true before assessment, during a wait, if the assessment concludes dyslexia, and if it does not. The value of an assessment is a clearer profile and, sometimes, access to arrangements and services — not permission to start teaching properly.

What this guide is, and is not

This is an educational resource. It does not identify or diagnose dyslexia; formal assessment is usually carried out by an educational psychologist or a specialist assessor with an appropriate practising certificate. It is also worth saying plainly that the boundary between dyslexia and other reading difficulties is genuinely debated among researchers. What is not debated is what helps: the teaching is broadly the same whether or not a child has a label.

  1. NHSProfessional guidance
    Dyslexia in children

    Plain-English NHS information for families on what dyslexia is, what is commonly noticed, and where to go for help.

  2. Sir Jim Rose / Department for Children, Schools and FamiliesProfessional guidance
    Identifying and Teaching Children and Young People with Dyslexia and Literacy Difficulties (2009)

    The independent report that shaped English practice: dyslexia as difficulties in accurate and fluent word reading and spelling, best understood as a continuum rather than a category with a clear cut-off.

  3. British Psychological SocietyProfessional guidance
    Dyslexia, Literacy and Psychological Assessment (1999, updated 2005)

    The BPS working party report for educational psychologists. Important for why assessment should describe literacy difficulties and what to teach, rather than only award or withhold a label.

  4. Education Endowment FoundationResearch summary
    Improving Literacy in Key Stage 1 — guidance report (2017, updated 2020)

    Recommendations on developing language, phonological awareness, systematic phonics, fluency and targeted support for struggling readers.

  5. Education Endowment FoundationResearch summary
    Improving Literacy in Key Stage 2 — guidance report (2017, second edition 2021)

    Reading fluency, vocabulary, comprehension strategies, writing, and structured intervention for pupils who have fallen behind.

  6. Education Endowment FoundationResearch summary
    Phonics — Teaching and Learning Toolkit

    Rated high impact for very low cost, based on very extensive evidence, with the largest effects for pupils who are struggling with early reading.

  7. Education Endowment FoundationResearch summary
    Special Educational Needs in Mainstream Schools — guidance report (2020, updated 2021)

    High-quality teaching first, careful scaffolding, and cautious deployment of teaching assistants and technology.

  8. Department for Education / University College LondonResearch summary
    Identifying and supporting children and young people with cognition and learning needs: a rapid evidence review (September 2025)

    DfE-commissioned UCL review. Carries an explicit disclaimer that it is not an endorsement and does not reflect government policy.

  9. Department for EducationResearch summary
    Neurodivergence Task and Finish Group: report — recommendations for mainstream education (February 2026)

    Independent recommendations to DfE, including timely identification of strengths and needs in the setting rather than reliance on diagnostic queues.

  10. Department for EducationStatutory guidance
    SEND Code of Practice: 0 to 25 years (2015)

    Current statutory guidance. Specific learning difficulties, including dyslexia, sit within cognition and learning; provision follows identified need.

Supporting Families
Looking for a parent-friendly version of Dyslexia?

The Kind Learner Space has this guide in plain English for families — the same evidence, translated for home.

Open in The Kind Learner Space
Continue exploring

Where to go next.

A calm handful of next steps — not a checklist. Follow whichever thread is most useful right now.

For families

Share this at home.

A plain-English version parents and carers can read at home — same evidence, warmer language.

Same category

More in Neurodevelopment.

ADHD, Autism, Dyslexia, Dyspraxia, sensory processing and related neurodevelopmental profiles.

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