Dyslexia and attention deficit disorder: what parents need to know

Last updated 2026-07-09

What is the connection between dyslexia and ADHD?

Dyslexia and ADHD are two separate conditions that travel together more often than chance would predict. Studies put the co-occurrence rate somewhere between 25 and 40 percent. If your child has one of them, there's a real possibility they have the other too ^[1]. That overlap trips up a lot of families and, honestly, a lot of teachers.

Dyslexia is a language-based learning disability rooted in the brain's difficulty processing the sounds that make up words (phonological processing). It has nothing to do with vision or intelligence. ADHD is a neurodevelopmental condition affecting executive function, attention regulation, and impulse control. The brain differences are distinct. Both conditions make sitting in a classroom and learning to read feel like an uphill climb.

Here's the part that matters for parents. A child who struggles to read could be showing signs of dyslexia, ADHD, both, or something else. Mistake one condition for the other and you delay the right intervention by months or years. Researchers at the Yale Center for Dyslexia & Creativity have documented that reading failure has distinct neurological profiles depending on whether dyslexia, ADHD, or both are driving it ^[1].

The two conditions share a genetic basis. Twin studies show that genes linked to reading difficulties and genes linked to attention difficulties overlap a good deal, which is one reason the co-occurrence isn't a coincidence ^[2].

How do you tell dyslexia apart from ADHD in a struggling reader?

This is the question every parent asks, and it's genuinely hard to answer without formal testing. The surface symptoms look alike: trouble following along during read-alouds, losing the thread of a story, taking forever to finish reading assignments, avoiding anything that requires sitting and reading. Both kids may seem distracted. Both may melt down over homework.

The distinction shows up when you look at where the breakdown actually happens.

A child with dyslexia but no ADHD usually has solid attention in tasks that don't require reading or phonological effort. Put them in front of a LEGO set or a video they care about and they focus fine. Their reading errors follow a pattern: they guess words from context, skip or swap small function words, and stall on unfamiliar multisyllabic words. Their reading rate is slow even when they understand what they read.

A child with ADHD but no dyslexia may decode words fine when they can slow down and focus. Their comprehension breaks down because working memory drops what they read three sentences ago. They misread words out of impulsivity (grab the first plausible word, keep moving), not because phonological processing is broken. Remove time pressure and distractions and their accuracy improves noticeably.

A child with both, again 25 to 40 percent of kids diagnosed with either condition, shows both patterns at once. They decode poorly and they lose comprehension. The intervention for that child has to address both.

Formal neuropsychological or educational testing is the only reliable way to sort this out. Use the signs of dyslexia checklist as a starting point, but don't stop there. Request a full evaluation through your school district or pursue one privately. See learning disability test for what that process involves.

What does the research say about how common this overlap is?

The numbers shift depending on how each study defines and measures each condition, so let's be honest about the range.

A 2020 meta-analysis in Psychological Bulletin (Willcutt et al.) pooled data from 46 studies and found that roughly 35 percent of children with a reading disability also met criteria for ADHD, and roughly 45 percent of children with ADHD showed significant reading difficulties ^[2]. Those aren't small fractions. They're large enough that any clinician evaluating a child for one condition should be screening for the other.

The National Institute of Child Health and Human Development (NICHD), which has funded decades of reading research, estimates that dyslexia affects between 5 and 15 percent of school-age children depending on the diagnostic threshold used ^[3]. ADHD prevalence in children sits around 9.4 percent based on 2016 parent-reported data from the CDC ^[4]. The size of both populations means millions of American kids are working through both at once, often without anyone having clearly named both for them.

Genetics adds another layer. A 2014 study in PLOS Genetics identified shared genetic risk loci between ADHD and dyslexia, which points to the co-occurrence being partly heritable rather than random ^[2]. If you or your partner has one of these conditions, the odds your child has the other go up meaningfully.

Nobody has clean data on how many kids get correctly flagged for both versus flagged for only one. The honest answer: the field suspects the dual-diagnosis group is often missed, especially for girls, who tend to internalize both conditions and show up with anxiety rather than visible behavior problems.

Do dyslexia and ADHD have different brain causes?

Yes, and the distinction matters for treatment.

Dyslexia is linked to differences in the left-hemisphere language areas, especially the regions that connect visual letter recognition to phonological (sound-based) coding. Neuroimaging studies consistently show that readers with dyslexia underactivate the left temporoparietal cortex and the occipito-temporal area (sometimes called the brain's "word form area") compared with typical readers ^[1]. Structured literacy instruction, the kind built on systematic phonics, can actually change these activation patterns over time.

ADHD is linked to differences in the prefrontal cortex and its connections to the striatum and cerebellum, regions that run executive function, working memory, and response inhibition. The neurotransmitter systems involved (dopamine and norepinephrine) differ from the phonological processing deficits in dyslexia. Stimulant medications target those dopamine pathways and can sharply improve attention and working memory, but they don't fix phonological processing.

When both conditions are present, you're dealing with two partly independent brain-level difficulties at the same time. Treating one and expecting the other to clear up is a mistake. The child who gets ADHD medication but no reading intervention may sit still better and still can't decode. The child who gets phonics tutoring but no ADHD support may understand the rules and still can't hold still long enough to practice them.

The different neurological profiles also explain why phonological dyslexia and double deficit dyslexia (which involves both phonological and rapid naming deficits) are distinct subtypes that need their own targeted approaches.

How do schools evaluate a child who might have both conditions?

Schools have to evaluate children suspected of having a disability, free of charge, once a parent makes a written request. That duty comes from the Individuals with Disabilities Education Act (IDEA), 20 U.S.C. § 1414, which says a local educational agency "shall conduct a full and individual initial evaluation" before determining eligibility for special education services ^[5]. The evaluation has to cover every area related to the suspected disability.

For a child suspected of having dyslexia and/or ADHD, a thorough school evaluation should include at minimum:

• Phonological processing measures (such as the CTOPP-2)
• Reading fluency and decoding assessments
• Cognitive testing (IQ matters less than specific processing profiles)
• Attention and executive function rating scales completed by both parents and teachers
• Academic achievement measures across reading, writing, and math

The catch is that school evaluations vary a lot in quality. Some districts run genuinely thorough psychoeducational evaluations. Others run a narrow academic screener that misses the ADHD piece entirely, or the reverse. If the evaluation doesn't cover both conditions and you still have concerns, you have the right to an Independent Educational Evaluation (IEE) at the district's expense when you disagree with the school's evaluation ^[5].

For ADHD specifically, a school evaluation alone often isn't enough for a medical diagnosis. ADHD diagnosis usually needs a physician or licensed psychologist who can rule out other causes and, if medication is on the table, manage the prescribing. Schools can identify ADHD as an educational disability without a medical diagnosis, but a pediatric or psychiatric evaluation is usually necessary alongside the school process.

See the dyslexia test article for more on what to expect from formal reading assessments.

What school supports can a child with both dyslexia and ADHD get?

Two legal pathways exist: an Individualized Education Program (IEP) under IDEA, or a 504 Plan under Section 504 of the Rehabilitation Act.

An IEP provides specialized instruction. That means the school has to change how the child is taught, more than hand over test accommodations. For a child with dyslexia and ADHD, that usually means explicit, systematic phonics-based reading instruction (structured literacy) plus executive function supports built into the school day. The IEP is a binding legal document with annual goals, progress monitoring, and specific services written in ^[5].

A 504 Plan doesn't require IDEA eligibility. If a child has ADHD or dyslexia that substantially limits a major life activity (reading and attending to tasks both qualify), the school must provide reasonable accommodations ^[6]. Common ones include extended time on tests, preferential seating, reduced-distraction testing rooms, text-to-speech software, and lighter homework loads.

For a child with both conditions, the supports have to hit both. A 504 that only grants extended time does nothing for a child who can't decode in the first place. An IEP that provides reading instruction but seats the child in the back of a loud classroom misses the ADHD piece.

Here's a rough comparison of what each plan covers:

Feature	IEP (IDEA)	504 Plan (Section 504)
Legal authority	IDEA, 20 U.S.C. § 1400	Rehab Act, 29 U.S.C. § 794
Requires "educational need" eligibility	Yes	No (only "substantially limits")
Provides specialized instruction	Yes	No (accommodations only)
Annual review required	Yes	Recommended; required by good practice
Covers both dyslexia and ADHD	Yes, if each qualifies	Yes, for either or both
Enforceable complaint process	State Ed agency + OSEP	OCR at U.S. Dept. of Education

If a school denies an evaluation or refuses to write an IEP when the evidence supports one, parents can file a complaint with the state education agency or request a due process hearing ^[5]. The U.S. Department of Education's Office for Civil Rights handles 504 complaints ^[6].

The ReadFlare parent advocacy kit includes sample written evaluation request letters and a 504/IEP comparison worksheet you can bring to the school meeting.

What reading interventions actually work when a child has both conditions?

Structured literacy is the evidence base for dyslexia, full stop. It means explicit, systematic, cumulative phonics instruction that teaches the sound-symbol system of English directly instead of letting kids guess from context. Programs like Orton-Gillingham, Wilson Reading System, RAVE-O, and SPIRE all sit under this umbrella. The National Reading Panel and the research that followed have consistently backed systematic phonics as the foundation for remediating reading disabilities ^[7].

For the ADHD piece, the research on pairing behavioral supports with academic intervention shows better outcomes than academic instruction alone ^[8]. In practice that means:

• Short, frequent practice sessions instead of long marathons (15 to 20 minutes of focused decoding beats 60 minutes of slowly collapsing effort)
• Immediate corrective feedback instead of end-of-session review
• Movement breaks between instructional segments
• A predictable, low-distraction spot for reading practice
• External organizational supports (checklists, timers, visual schedules) to ease the working memory load ADHD already taxes

Medication for ADHD, when it's clinically appropriate and prescribed by a physician, can improve a child's ability to benefit from reading instruction by raising on-task time and working memory capacity. But medication doesn't teach decoding. The reading instruction still has to happen.

One practical thing parents can do at home: run sight word practice in very short, game-like sessions rather than long drills. Sight word flashcards and sight words worksheets land better in five-minute bursts for kids with ADHD than in a 30-minute homework sit-down. For early readers, first grade sight words and Dolch sight words give you a concrete target list to work from.

Does ADHD medication help with reading difficulties?

It depends on what's driving the reading difficulty.

For a child whose main problem is attention and working memory (ADHD-dominant), stimulant medication often produces a clear jump in reading comprehension, because the child can now hold information in mind across a full paragraph. Several controlled trials show that methylphenidate and amphetamine-based medications improve reading comprehension scores in children with ADHD ^[8].

For a child whose main problem is phonological processing (dyslexia-dominant), medication generally doesn't change decoding accuracy much. The brain's phonological system isn't dopamine-dependent the way attention is. What medication can do is make the child more available to benefit from phonics instruction: more willing to sit, less impulsive about guessing, more able to hold a letter sequence in working memory while sounding out.

For the co-occurring group, parents and clinicians often describe medication alone as taking the cap off a bottle that still has nothing in it. Attention improves and reading stays labored, because the phonological deficit is still untreated.

The practical takeaway: medication decisions should involve a pediatrician or psychiatrist who knows the full picture, including the dyslexia diagnosis, and medication should run alongside structured literacy intervention, not in place of it. Nobody should be telling a family their child's reading will catch up once the ADHD is treated. That's not what the evidence shows for kids with both conditions.

How do you ask for a school evaluation when you think your child has both?

Put it in writing. Email counts. A verbal request in a parent-teacher conference does not start the legal clock.

Under IDEA, once a school gets a written evaluation request from a parent, it has a set number of days (usually 60, though the exact timeline varies by state and is sometimes set by state regulation) to finish the evaluation and hold an eligibility meeting ^[5]. The school must either agree to evaluate or send you a written explanation of why it's refusing, which then gives you the right to dispute.

Your written request should say plainly that you suspect your child has a disability affecting their education and that you're requesting a full and individual evaluation under IDEA. Name the specific concerns: reading accuracy, phonological processing, attention, executive function. The more specific you are, the harder it is for the district to run a narrow screening and call it done.

If you have private evaluations, reports from a pediatrician, or teacher observation notes, attach them to your request. Schools are required to consider existing evaluation data as part of the process ^[5].

The U.S. Department of Education's IDEA page has the plain-language parent rights guides, called the "Notice of Procedural Safeguards," which schools are supposed to hand you automatically at the start of the evaluation process ^[5].

If your child's school pushes back, a parent advocate or special education attorney can come to meetings with you. Many state PTI (Parent Training and Information) centers, which are federally funded, offer free consultation for exactly this situation. Find your state's PTI center through CPIR (the Center for Parent Information and Resources) at parentcenterhub.org ^[9].

What should parents watch for that might mean their child has both?

The red flags that point to possible co-occurrence rather than one condition alone include:

• A child who responds well to phonics tutoring but still struggles to retain what they read in longer passages (phonics fixed some decoding, but working memory or attention keeps dropping comprehension)
• A child diagnosed with ADHD and given accommodations whose reading accuracy hasn't improved with those accommodations alone
• A child who can decode simple words in isolation but falls apart on grade-level text because they can't manage decoding demands AND hold the story in mind at the same time
• A child who is inconsistent in a way that feels puzzling: reads a word correctly on Monday and can't get it on Tuesday (inconsistency shows up in both conditions but runs especially strong when both are present)
• A history of early speech or language delays combined with attention concerns (early speech-language issues predict dyslexia; pair them with hyperactivity or inattention across settings and you're looking at the co-occurring profile)
• Heavy emotional reactivity around reading (frustration, avoidance, meltdowns), common in both conditions but more extreme in kids carrying both loads at once

For a self-guided starting point, the ReadFlare free reading tools include a symptom pattern checklist parents can fill out before an evaluation meeting. The checklist is a starting point, not a diagnosis. An actual learning disability test or formal evaluation is the necessary next step.

Can a child with dyslexia and ADHD be successful in school?

Yes. Full stop.

The outcomes research for children with dyslexia who get appropriate structured literacy intervention is genuinely encouraging. A 2022 review in the journal Reading and Writing found that intensive structured literacy intervention produced significant gains in word reading accuracy, even for students who hadn't responded to typical classroom instruction ^[10]. For ADHD, long-term studies show that children who get both behavioral support and appropriate academic accommodations across their school years have better academic and mental health outcomes in adulthood than those who received neither ^[8].

What matters more than any single intervention is catching both conditions early and staying stubborn about getting the right support. A child whose dyslexia is identified in first grade and treated with structured literacy from that point forward has a very different trajectory than a child whose struggles get chalked up to laziness or immaturity until fourth grade.

The mental health piece is real and gets underemphasized. Children who carry unidentified or undertreated learning and attention differences develop anxiety, low academic self-concept, and in some cases depression at higher rates than their peers ^[4]. Naming both conditions accurately, getting both supported, and telling the child directly that neither condition defines their intelligence goes a long way.

Many scientists, artists, entrepreneurs, and writers have spoken publicly about living with dyslexia and ADHD. The specifics of any one person's story are theirs to tell, but the broader pattern of people with both conditions building meaningful careers and lives is well documented and worth saying honestly to a kid who's struggling.

Frequently asked questions

Can a child have dyslexia and ADHD at the same time?

Yes. Research consistently shows that 25 to 40 percent of children diagnosed with either dyslexia or ADHD also meet criteria for the other condition. The two have different neurological causes but frequently co-occur, partly because they share some genetic risk factors. Having both doesn't mean the conditions are the same thing; it means a child needs evaluation and support that address both.

How is dyslexia different from ADHD in terms of reading problems?

Dyslexia produces reading errors rooted in phonological processing: trouble sounding out unfamiliar words, slow reading rate, and consistent decoding errors regardless of attention level. ADHD produces reading problems rooted in attention and working memory: comprehension drops over longer texts, impulsive guessing at words, and performance that improves noticeably in low-distraction settings. A child with both shows both patterns at once.

Does treating ADHD with medication fix reading problems caused by dyslexia?

No. Stimulant medications for ADHD can improve attention and working memory, which may help a child sit and focus during reading instruction, but medication doesn't fix phonological processing deficits. A child with dyslexia needs structured literacy intervention regardless of whether ADHD medication is part of their treatment. The two treatments address different brain systems.

What kind of testing can identify both dyslexia and ADHD?

A full neuropsychological or psychoeducational evaluation covers both. It typically includes phonological processing tests (like the CTOPP-2), reading and decoding assessments, cognitive processing measures, and standardized attention and executive function rating scales completed by both parents and teachers. Schools must provide this evaluation free of charge on written parent request under IDEA. Private evaluations from licensed psychologists are also an option.

Is ADHD considered a learning disability under IDEA?

ADHD by itself doesn't qualify as a specific learning disability under IDEA's definitions, but it can qualify a child for special education under the "Other Health Impairment" category if it adversely affects educational performance. Children with ADHD who don't meet IDEA eligibility can still get accommodations through a 504 Plan under Section 504 of the Rehabilitation Act, which has a broader eligibility standard.

What accommodations help a student who has both dyslexia and ADHD?

Effective accommodations address both conditions. For dyslexia: text-to-speech tools, audiobooks, extended time, reduced reading on non-reading assessments, and explicit phonics instruction. For ADHD: preferential low-distraction seating, movement breaks, chunked assignments, visual schedules, and organizational supports. An IEP can mandate both specialized instruction and accommodations; a 504 Plan covers accommodations only.

How do I ask my child's school to evaluate for both dyslexia and ADHD?

Submit a written request, email works, addressed to the school principal or special education coordinator. State that you suspect your child has a disability affecting their education and request a full individual evaluation under IDEA. Name both reading and attention as areas of concern. The school must respond in writing within your state's timeline (usually around 60 days) and either agree to evaluate or provide a written refusal you can dispute.

What is the difference between an IEP and a 504 Plan for a child with dyslexia and ADHD?

An IEP under IDEA provides specialized instruction (the school changes how the child is taught) in addition to accommodations. A 504 Plan under the Rehabilitation Act provides accommodations but not a change in instruction. A child with both dyslexia and ADHD who needs phonics-based reading instruction should push for an IEP. A child who mainly needs environmental and testing accommodations may be well served by a 504 Plan.

Are girls with dyslexia and ADHD often missed or diagnosed late?

Yes, this is a well-documented pattern. Girls with ADHD tend to present with inattentive symptoms rather than hyperactivity, which makes them easier to overlook. Girls with dyslexia often build strong compensation strategies that mask the underlying deficit. The combination means girls with both conditions frequently go unidentified until middle school or later, by which point reading gaps and anxiety have compounded.

What reading programs work best for kids who have both dyslexia and ADHD?

Structured literacy programs (Orton-Gillingham-based approaches, Wilson Reading System, RAVE-O, SPIRE) are the evidence base for dyslexia. For the ADHD piece, delivery matters as much as the program: short frequent sessions (15 to 20 minutes), immediate feedback, low distraction, and movement breaks make any structured literacy program more effective for a child who also has ADHD.

How common is it for a child with ADHD to also have a reading problem?

Very common. A 2020 meta-analysis in Psychological Bulletin found that roughly 45 percent of children with ADHD showed significant reading difficulties. Not all of those children have dyslexia specifically, but the overlap is large enough that any child evaluated for ADHD should also be screened for reading difficulties, and the other way around.

Can early intervention make a difference for a child with both conditions?

Yes, substantially. For dyslexia, research consistently shows that structured literacy intervention works best when it starts in kindergarten through second grade, before compensatory habits set in and before academic frustration damages the child's reading self-concept. For ADHD, earlier behavioral and executive function support also predicts better long-term academic outcomes. Both conditions benefit from identification before the gap widens.

Does having dyslexia and ADHD together mean a child will always struggle with reading?

Not necessarily. With appropriate structured literacy intervention for the dyslexia and appropriate academic and behavioral support for the ADHD, many children make significant reading gains and go on to function well academically. The key is that both conditions need to be identified and addressed. Treating only one and leaving the other untreated typically produces incomplete results.

Sources

1. Yale Center for Dyslexia & Creativity, "Dyslexia FAQ": Dyslexia is a language-based learning disability rooted in phonological processing; co-occurrence with ADHD is well documented in neurological research
2. Psychological Bulletin, Willcutt et al., "Comorbidity of reading disability and attention-deficit/hyperactivity disorder", 2020 meta-analysis; and PLOS Genetics shared genetic loci study, 2014: Approximately 35 percent of children with reading disability meet ADHD criteria; approximately 45 percent of children with ADHD show significant reading difficulties; shared genetic risk loci identified between ADHD and dyslexia
3. National Institute of Child Health and Human Development (NICHD), "Dyslexia Information Page": Dyslexia affects between 5 and 15 percent of school-age children depending on diagnostic threshold
4. CDC, "Data and Statistics About ADHD": ADHD prevalence in U.S. children is approximately 9.4 percent based on 2016 parent-reported National Survey of Children's Health data
5. U.S. Department of Education, IDEA statute and parent rights, "Individuals with Disabilities Education Act": IDEA 20 U.S.C. § 1414 requires a free full and individual evaluation upon parent written request; school must respond with evaluation or written refusal; parents have right to IEE at district expense if they disagree with evaluation
6. U.S. Department of Education Office for Civil Rights, "Section 504 and IDEA Comparison": Section 504 of the Rehabilitation Act (29 U.S.C. § 794) requires accommodations for students with disabilities that substantially limit a major life activity, including reading and attention; OCR enforces 504 complaints
7. National Reading Panel, "Teaching Children to Read: An Evidence-Based Assessment", NICHD, 2000: Systematic, explicit phonics instruction is supported by the strongest evidence base for remediating reading disabilities
8. MTA Cooperative Group, "A 14-Month Randomized Clinical Trial of Treatment Strategies for Attention-Deficit/Hyperactivity Disorder", Archives of General Psychiatry, and subsequent MTA follow-up studies: Stimulant medications improve reading comprehension in ADHD; combined medication and behavioral support produces better long-term academic outcomes than either alone
9. Center for Parent Information and Resources (CPIR), "Find Your Parent Center": Federally funded Parent Training and Information (PTI) centers provide free consultation to families navigating IDEA evaluation and IEP processes
10. Reading and Writing journal, systematic review of structured literacy intervention outcomes, 2022: Intensive structured literacy intervention produced significant gains in word reading accuracy even for students who had not responded to typical classroom instruction
11. International Dyslexia Association, "Dyslexia in the Classroom: What Every Teacher Needs to Know": Structured literacy programs (Orton-Gillingham-based, Wilson, RAVE-O, SPIRE) are the recommended intervention approach for students with dyslexia