Dyslexia is a reading disability. People with dyslexia often have trouble connecting letters to sounds. Sounding out words can be hard. Reading smoothly can be hard too. It is not a sign of low intelligence. It is not caused by laziness. In Ontario, a psychologist diagnoses this through a psychoeducational assessment. The clinical name is a specific learning disorder in reading. This article explains what dyslexia is. It also covers signs you might notice and how diagnosis works here.
If reading has been a long struggle for you or your child, you are not alone. A clear assessment can show what is going on. It can also show what support would actually help.
What dyslexia is
Psychiatry.org describes specific learning disorder as one diagnosis. It can affect different skill areas. One of those areas is reading, commonly called dyslexia. It can include trouble with accurate word reading. Reading fluency and comprehension can be hard too. Spelling is often hard as well.
Dyslexia is the most common form of this kind of learning disorder. Psychiatry.org notes that about 80 percent of people with learning disorders have a reading impairment. The difficulty usually starts in the school years. It can continue in high school, college, university and work. Many adults were never assessed as children. They only later learn why reading always felt so hard.
A learning disability is not the same thing as an intellectual disability. People with dyslexia often have average or strong thinking skills in many areas. Their brains process written language differently. With the right teaching, supports and time, they can make real progress.
Signs you might notice
We already have a detailed guide to the signs of dyslexia in children. This section is a short overview. It is not a complete checklist. Signs are not a diagnosis on their own. Many children mix up letters when they first learn to read. The concern grows when the difficulty lasts. That is true even with good teaching and extra practice.
In the early school years, you might notice the following.
trouble learning letter names and the sounds they make.
difficulty rhyming or breaking words into sounds.
slow, effortful reading of simple words.
guessing at words from pictures or the first letter.
spelling that is hard to read, even for common words.
In later grades, signs may include the following.
reading that is much slower than classmates.
avoiding reading aloud.
trouble understanding longer passages, even when the child is bright.
written work that does not match how well they can explain ideas out loud.
homework that takes far longer than it should.
In teens and adults, dyslexia can look like slow reading of emails, forms or textbooks. Spelling trouble may continue. Reading can be tiring. Some people have found clever workarounds. That can make the struggle easy to miss. If you want a sense of the lived experience, we have another post. It is about what it is like to have dyslexia.
How dyslexia can affect daily life
Reading sits underneath almost every subject. When word reading is slow, science and history get harder. Even math word problems can be hard. A student may understand the ideas but run out of time on tests. They may feel anxious before reading tasks. They may start to believe they are “bad at school.”
At home, homework can turn into a nightly battle. A child may refuse to read, or a teen may hide schoolwork. Adults may avoid jobs or courses that involve a lot of reading. They may do this even when they would be a good fit in other ways.
These reactions make sense. They are not a character flaw. Understanding the reading difficulty is often the first step toward better support. It can also lead to a kinder story about why things have been hard.
How dyslexia is diagnosed
In Ontario, a psychologist can diagnose a learning disability. A psychological associate can too, if they are registered and trained to assess learning. LDAO says that giving a diagnosis is a controlled act. Not every psychologist assesses learning disabilities. Not every psychologist works with children. It is fair to ask about their training.
A teacher, tutor or parent can notice signs. They cannot make this diagnosis. A psychoeducational assessment is the usual next step. It can show whether a reading disability is present.
Psychiatry.org describes several criteria that clinicians use. These include the following.
ongoing difficulty with reading skills for at least six months, even with extra help.
skills that are well below what is expected for age, shown on standardized measures.
difficulties that begin during the school years, even if they show up more clearly later under heavier reading demands.
difficulties that are not better explained by another condition. That could include a general thinking disability, uncorrected vision or hearing problems, or a lack of proper teaching.
The psychologist gathers a history from you. They often hear from teachers too. They look at thinking skills and school skills. They also look at memory, speed, attention and feelings. They also look at strengths. The goal is a clear picture, not a label for its own sake.
If you are a college or university student, a documented diagnosis may also support school accommodations. Our psychologists and nurse practitioners can complete the OSAP Disability Verification Form when it is appropriate.
How an assessment can help
A psychoeducational assessment for a child looks at how your child thinks and learns. We also offer assessments for teens and adults. We see children aged 6 and up, teens and adults. Assessments are offered in Kitchener-Waterloo, Cambridge and Ottawa.
The assessment can help show a few things.
whether a specific learning disorder with impairment in reading is present.
which parts of reading are hardest, such as decoding, fluency or comprehension.
whether writing, math, attention or anxiety are also part of the picture.
what kinds of school support are likely to help.
You do not need to already know that the problem is dyslexia. Many families come in with a broader concern. They may simply say that school is much harder than it should be. The psychologist can help you decide if this kind of assessment is the right next step.
Support at school and home
A diagnosis is useful when it leads to practical help. In Ontario schools, that often means accommodations and, when it is appropriate, an Individual Education Plan, or IEP. Support might include extra time. It might include audiobooks or text-to-speech tools. Reading instruction should be clear, step by step and well matched to the student.
At home, keep reading practice short and encouraging. Praise effort. Let your child use their strengths. Listening to stories still builds language and knowledge, even when decoding is hard. You do not have to wait for a report to be kind about the struggle.
If worry, sadness or school refusal are growing, those feelings matter as much as grades. Counselling can sit alongside an assessment when feelings have become part of the picture.
Your next step
You can book a free 15-minute call with our admin team. It is a chance to explain your concerns. We can arrange a talk with one of our psychologists. Together you can talk about whether this kind of assessment is a good next step.
We offer learning disability and giftedness assessments. We also offer these assessments. These are for children aged 6 and up, teens and adults. You can come to our offices in Kitchener-Waterloo, Cambridge or Ottawa. The call is not a therapy session. It is not a crisis service. Booking it does not mean you must go ahead with an assessment.
If you or someone you love is in immediate danger, call 911. If you are thinking about suicide, call or text 9-8-8, any time.
Last reviewed: November 2026