Skip to content
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.
MoreFor SENDCOs

Working out what kind of difficulty this is

The most valuable thing a SENDCO does here is discrimination: this child cannot decode; this child decodes but cannot read fluently; this child reads accurately but does not understand because vocabulary and language are limited; this child can do all of it but cannot sustain attention long enough. Those four children look similar in a book scrutiny and need completely different provision.

  • Word reading accuracy, tested separately from comprehension.
  • Reading fluency, timed and compared over time.
  • Phonic knowledge, checked against what has been taught.
  • Phonological awareness, particularly in EYFS and KS1.
  • Spelling, looking at the pattern of errors rather than the score.
  • Listening comprehension, which separates word-level difficulty from language difficulty.
  • Vocabulary and background knowledge.
  • History: attendance, school moves, hearing, EAL, prior teaching.
Do not skip hearing and vision

Both are common, both are checkable, and both produce reading difficulty that will not respond well to a literacy intervention alone.

AssessmentFor SENDCOs

Assessment that produces a teaching plan

The BPS position — that assessment should describe the difficulty and inform teaching, rather than function purely as a gatekeeping exercise — is the practical stance for schools. Whether or not a child meets a threshold, you still need to know exactly which skills are missing.

Baseline precisely

Specific skill measures, not reading ages alone. A reading age hides which component is broken.

Set a hypothesis, then test it

"We think this is a decoding problem" is testable in six weeks. "Literacy difficulties" is not.

Match provision to the component

Decoding, fluency, spelling, vocabulary and comprehension need different programmes. Generic booster groups often target none of them.

Get the dosage right

Short, frequent, sustained. Twice a week for a term is usually too little to move a stubborn decoding difficulty.

Train and monitor delivery

The EEF SEND and literacy guidance is consistent that structured intervention delivered by trained staff, linked to classroom teaching, is what works — not the programme name.

Review with data and be willing to stop

If eight weeks of well-delivered intervention has moved nothing, change the intervention, not the child's effort level.

AssessmentFor SENDCOs

When specialist assessment adds something

  • Progress has stalled despite well-implemented, appropriately targeted teaching over a sustained period.
  • The profile is uneven or puzzling in ways the school's assessment cannot explain.
  • There are co-occurring concerns — language, attention, memory, coordination, or emotional wellbeing.
  • Access arrangements or a statutory assessment are being considered.
  • The family are pursuing assessment and need the school's evidence and view.

Formal identification of dyslexia is usually made by an educational psychologist or a specialist assessor holding an appropriate practising certificate. Be clear with families that schools do not diagnose, that availability varies locally, and that provision does not depend on the outcome.

ProvisionFor SENDCOs

Provision, adjustments and the graduated approach

  • Wave 1 first: consistent phonics, fluency practice, vocabulary teaching and scaffolded writing across the curriculum.
  • Named, specific adjustments — not "support with literacy" but what, when, and by whom.
  • Adjustments applied in every subject, not only in English.
  • Assistive technology introduced with training and used routinely, so it is normal by the time assessments matter.
  • Explicit attention to wellbeing and self-concept, which is where the long-term damage accumulates.
  • Transition information passed on properly, including what works, not only what the difficulty is.
ResearchFor SENDCOs

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.

You may also find these helpful

Related Evidence Guides

Each guide below connects to the one you've just read. We've noted why — so you can follow the thread that matters most to you.

A stack of well-loved picture books beside a notebook on a wooden desk in soft window light.
Evidence guide · 12 min read

Working Memory

Why this is relevant

Holding sounds and words in mind while decoding draws on working memory for many children.

Explore
A pegboard on a classroom wall with wooden name tags in warm afternoon light.
Evidence guide · 14 min read

Executive Function

Planning, flexibility and impulse control — the mental machinery that lets a developing brain get things done.

Explore
An open book and pencil on a classroom desk lit by low morning sunlight through a window.
Evidence guide · 11 min read

Attention

What we mean by attention, why it wanders, and the classroom conditions that help it hold.

Explore
A quiet primary classroom corner with soft natural light, uncluttered surfaces and calm materials.
Evidence guide · 11 min read

Cognitive Load

Why this is relevant

Reducing what a task demands elsewhere frees capacity for the reading itself.

Explore
A child's small hands holding an autumn maple leaf in soft window light.
Evidence guide · 10 min read

Processing Speed

Why this is relevant

Reading fluency and processing speed interact — this guide covers pace without lowering expectation.

Explore
A teacher crouched at eye level beside a young child at a classroom desk, pointing at a small visual card in soft window light.
Evidence guide · 13 min read

Understanding Spoken Language

How children make sense of what adults say — and what we can change about the way we communicate so that more children understand, participate and show what they know.

Explore
A young primary school child talking animatedly to an adult across a classroom table in soft window light.
Evidence guide · 14 min read

Expressive Language

How children put their thoughts, ideas, needs and experiences into words — and what adults can change so that more children can show what they think and know.

Explore
An adult and a young primary school child sitting side by side over an open picture book in soft window light.
Evidence guide · 14 min read

Vocabulary & Word Knowledge

Why this is relevant

Comprehension depends on word knowledge, and children who read less get less of it incidentally.

Explore
An adult and a young primary school child sitting side by side at a classroom table, looking together at a small picture card in soft window light.
Evidence guide · 14 min read

Speech Sounds & Speech Clarity

Why this is relevant

Phonological awareness sits underneath both. Worth reading where early speech sounds were also difficult.

Explore
A quiet primary school book corner with a wooden bench, cushions and a basket of picture books beside a window in soft daylight.
Evidence guide · 15 min read

Emotional Regulation

Not the ability to stay calm. What emotional regulation actually involves, how it grows through relationships, and what genuinely helps at home and in class — with the strength of the evidence stated plainly.

Explore
A quiet primary school cloakroom with a single coat and book bag on a wooden peg rail in soft morning light.
Evidence guide · 15 min read

Anxiety & Worry

Most childhood worry is ordinary and passes. This guide is about telling the difference — what anxiety is, how it shows up when a child cannot name it, what genuinely helps, and when to involve someone else.

Explore
A quiet primary classroom carpet area with cushions and a low bookshelf in soft daylight.
Evidence guide · 16 min read

Understanding Behaviour

Behaviour is information. This guide looks at what tends to sit underneath it — need, context, relationship, communication, learning — and how to respond in a way that is both understanding and clear.

Explore
An empty wooden bench beside a primary school playground with a faded chalk hopscotch grid and autumn leaves.
Evidence guide · 15 min read

Relationships & Belonging

Why this is relevant

The confidence cost often outlasts the reading difficulty. This guide covers how standing in class is protected.

Explore
An empty primary school desk with a pencil pot and notebook beside a wooden chair with a wobble cushion, in soft morning light.
Evidence guide · 16 min read

ADHD

Attention, impulse and activity are shaped as much by the situation as by the child. This guide looks at what ADHD is, what it is not, and what actually helps in a mainstream primary classroom and at home.

Explore
A quiet corner of a primary classroom with a low wooden shelf of neatly arranged wooden blocks and a folded blanket beside a window.
Evidence guide · 17 min read

Autism

Autism is a difference in how a person communicates, experiences the world and makes sense of it — not a list of deficits. This guide looks at what may be relevant, what the environment contributes, and what genuinely helps in a mainstream primary school.

Explore
An adult's hand gently holding a young child's hand in soft natural light.
Evidence guide · 13 min read

School Attendance

When getting to school becomes the hardest part of the day. What can sit underneath attendance difficulties, how families and schools can work on it together, and what the guidance actually expects.

Explore
A calm, quiet reading corner in a primary classroom with cushions and soft daylight.
Evidence guide · 11 min read

Transitions

Moving from one thing to the next — between activities, places, people and years. Why change can be so hard for some children, and the calm, predictable preparation that helps.

Explore
Soft natural textures and calm materials arranged in gentle daylight.
Evidence guide · 11 min read

Sensory Needs

Some children experience noise, light, touch, smell or movement more — or less — intensely than others. What that can look like, why it matters for learning and wellbeing, and the calm adjustments that help.

Explore
A tidy wooden desk with a notebook and pencils in soft window light.
Evidence guide · 9 min read

Homework

Making home learning calmer for everyone. What the evidence says about primary homework, why it can be so hard after a long school day, and how families and schools can keep it purposeful rather than painful.

Explore
A parent and child sharing a picture book together in soft, warm light.
Evidence guide · 9 min read

Sleep

Small, steady changes that help a child settle and stay asleep — and why sleep matters so much for learning, mood and coping. Based on NHS advice.

Explore