Does My Child Need an Intellectual Disability Assessment?
Understanding the signs, the diagnosis and how the right support can make all the difference
As children grow it's natural for parents to notice differences in how they learn, communicate, and become more independent. Every child develops at their own pace, and there is a wide range of what we consider to be typical development.
Some children take longer to reach early developmental milestones than other children. They might walk or talk a bit later or take a bit longer to master toilet training. If children are later to reach a number of these, then they may be seen by professionals who might suggest a diagnosis of Global Developmental Delay or Early Developmental Impairment.
Many of these children will catch up as they get older or might be identified as having a specific difficulty with just one area. For example, they might continue to struggle with language and be identified as having a language disorder or they might continue to find it harder to learn skills like riding a bike or learning to swim and be identified as having Developmental Coordination Disorder.
However, there will be some children for whom as they get older; those delays in reaching milestones at the same time as peers turn into an ever-widening gap between what their child is able to achieve compared to peers. This might include academic difficulties and accessing work at school several years behind what peers might be managing as well as being unable to develop independence with other everyday tasks in the way peers might be e.g., not being able to trust them to walk to school alone when other children are starting to do so. Parents often tell me they have a sense that their child is finding everyday life more difficult than other children of the same age, but they're unsure whether this is something their child will eventually grow out of or whether there may be another explanation.
If this sounds familiar, it may be worth considering whether an Intellectual Disability assessment could help provide some answers.
What is an Intellectual Disability?
An Intellectual Disability (ID), sometimes referred to as a Learning Disability, is a lifelong
neurodevelopmental condition that affects a person's intellectual functioning and adaptive skills. In simple terms, this means a child may experience significant difficulties with thinking, reasoning, problem-solving, and learning new information. These differences make managing everyday tasks independently much more difficult for them, and generally mean parents need to provide a lot more prompting, support and scaffolding than other parents of children the same age.
An Intellectual Disability is not simply about finding schoolwork difficult or achieving lower grades. Children with an Intellectual Disability experience challenges across many areas of life, including communication, self-care, social understanding, independence and learning.
To meet the criteria for an Intellectual Disability diagnosis, a child’s difficulties with both cognitive ability and everyday adaptive functioning are significant. The criteria for the diagnosis is that their overall level of intellectual ability falls within the bottom 2% of children of the same age, i.e. 98% of kids the same age would find the tasks that I do with them less difficult. In a year group of 100 they would be within the couple of kids needing the most support from their teachers across all areas.
Could my child have an Intellectual Disability?
Every child is unique, and there is no single sign that confirms an Intellectual Disability. However, there are some common patterns that may suggest a child would benefit from a comprehensive assessment:
Your child was diagnosed with Global Developmental Delay or Early Developmental Impairment when they were younger.
They continue to struggle to keep up with their peers across most or all areas of
learning.
They require significantly more support than other children of the same age to
complete everyday tasks.
They seem happier interacting with younger children
They need ongoing support with communication, self-care or understanding everyday situations beyond that which you see their peers needing.
You're becoming increasingly concerned about how they will manage as they move through secondary school and into adulthood.
These signs do not automatically mean that a child has an Intellectual Disability. However, they can indicate that a detailed assessment would help build a clearer understanding of your child's strengths and needs.
Why is a diagnosis important?
Seeking a diagnosis can feel like a significant step. It's understandable for parents to have mixed feelings, particularly if they're worried about their child being "labelled".
In my experience, a diagnosis is not about defining a child. It is about understanding them more fully.
Having an accurate diagnosis can help explain why a child is struggling. Often children's struggles may show indirectly in their behaviour or emotional wellbeing. Having an accurate diagnosis enables parents, schools and other professionals to adjust expectations appropriately and provide support that matches the child's individual needs.
An Intellectual Disability is also recognised in law as a disability, meaning children and adults are entitled to reasonable adjustments, protection, and accessible support throughout education, when they encounter health professionals and, in the community, and into later life.
For many families, having an explanation can bring reassurance. Rather than wondering why their child is struggling, they can begin focusing on the strategies and support that will help them thrive.
What happens during an Intellectual Disability assessment?
At Total Children's Therapy, our Intellectual Disability assessment is designed to build a detailed picture of your child's development over time, and across settings, to identify their areas of strength and difficulty rather than relying on a single test.
The assessment includes gathering information from both parents and school, exploring your child's developmental history, understanding how they manage everyday activities, and completing a standardised cognitive (IQ) assessment.
We also consider your child's adaptive functioning – in other words, how independently they manage daily life compared with other children of the same age. This helps us understand not only how your child learns, but also how they apply those skills in real-life situations.
Once all the information has been carefully reviewed, we produce a comprehensive report and meet with you to discuss the findings, answer your questions, and explain the
recommendations.
Sometimes the assessment shows that an Intellectual Disability is not the most appropriate explanation for a child's difficulties but instead identifies specific areas of need that might require further assessment. In those situations, we can recommend further assessment to explore other areas, such as speech and language, motor skills, literacy or other neurodevelopmental differences, including autism where appropriate.
Looking beyond the diagnosis
One of the things I value most about this work is helping families understand that every assessment is about much more than reaching a diagnosis.
Children are far more than a test score.
Every child has their own personality, interests, strengths and potential. Understanding the way they learn simply allows the adults around them to provide the right support, adapt expectations where needed and celebrate progress in meaningful ways.
When children feel understood, they are far more likely to develop confidence, experience success and enjoy positive emotional wellbeing.
When should you seek advice?
If you've found yourself asking questions about your child's development for some time, it's worth having a conversation.
You don't need to wait until you're certain that your child has an Intellectual Disability before seeking advice.
For some families, an assessment provides reassurance that their child is developing in their own way. For others, it provides the clarity needed to access appropriate support and plan confidently for the future.
At Total Children's Therapy, our aim is always to help families better understand their child. Whether an Intellectual Disability diagnosis is appropriate or another explanation becomes clearer, the most important outcome is ensuring every child receives the understanding and support they deserve.
If you would like to find out more about our Intellectual Disability Diagnostic Service or discuss whether an assessment may be appropriate for your child, our team would be happy to help.
By Dr Kate Martin, BSc (Hons) DClinPsy - Principal Clinical Psychologist
Comments