An intellectual disability (ID) is a neurodevelopmental condition characterised by significant limitations in both intellectual functioning and adaptive behaviour, with onset during the developmental period. Under the DSM-5-TR, intellectual disability is classified according to severity – mild, moderate, severe, or profound – based on adaptive functioning across conceptual, social, and practical domains.
Intellectual disability is distinct from specific learning disorders, which affect performance in discrete academic areas. An intellectual disability reflects broader limitations in cognitive ability and everyday adaptive functioning. It may occur on its own or alongside other neurodevelopmental conditions such as autism spectrum disorder or ADHD.
In younger children, the term developmental delay is often used when a child is not meeting expected developmental milestones across one or more areas, including language, motor skills, social development, or cognitive ability. A formal assessment can clarify whether developmental delays are present, their nature and extent, and whether they are consistent with an intellectual disability or another neurodevelopmental condition.
Early identification of developmental delay and intellectual disability is important for accessing early intervention services, which can make a significant difference to long-term outcomes for children and their families.
A formal diagnosis of intellectual disability can support access to a range of services and supports. The assessment report from Dr Melissa Rouel can be used to apply for NDIS funding, access school-based support and adjustments, and inform engagement with specialist services including speech pathology, occupational therapy, and behaviour support.
For children, early intervention following identification of intellectual disability or developmental delay is associated with better outcomes across communication, adaptive behaviour, and quality of life. For adults, a formal diagnosis can support access to supported employment, community participation, and independent living services.
Where relevant, Dr Melissa Rouel can recommend referral to appropriate allied health professionals and support services in the Western Sydney region.
An intellectual disability assessment may be appropriate for:
Following the assessment, a written report is provided. The report outlines the findings, identifies any diagnosis, and includes recommendations for support, intervention, and access to services including NDIS funding. A feedback appointment will also be scheduled to discuss these results.
An intellectual disability involves significant limitations in overall intellectual functioning and adaptive behaviour across multiple areas of daily life. A specific learning disorder (SLD) involves difficulty in one or more specific academic areas, such as reading, writing, or mathematics, in an individual with otherwise average or above-average cognitive ability. Dr Melissa Rouel's assessments distinguish between these presentations and identify the most appropriate diagnosis and recommendations.
Yes. Intellectual disability and autism spectrum disorder can co-occur, and a comprehensive assessment is important to identify both conditions accurately. Dr Melissa Rouel conducts assessments that consider the full range of neurodevelopmental presentations and co-occurring conditions.
Yes. A formal neuropsychological assessment confirming intellectual disability is one of the primary pathways to NDIS access. Dr Melissa Rouel's assessment report provides the diagnostic documentation required to support an NDIS application. She serves families across Castle Hill, Parramatta, Blacktown, Fairfield, and Kellyville.
Intellectual disability can be assessed from the age of five onwards. Prior to the age of five, a diagnosis of development delay should be considered. Dr Melissa Rouel assesses children, adolescents, and adults, and can advise on the most appropriate timing based on individual circumstances.
An intellectual disability assessment with Dr Melissa Rouel typically involves one session of approximately three hours. A written report is provided following the assessment. To make an enquiry, please visit neuropsy.com.au/contact.
Dr Melissa Rouel provides intellectual disability and developmental delay assessments for children, adolescents, and adults. She sees clients from across Western Sydney and the Hills District including: Castle Hill and the Hills District, Parramatta and surrounding suburbs, Blacktown and Mount Druitt areas, Fairfield and South-Western Sydney, Kellyville, Rouse Hill, and Norwest. Telehealth options may be available for some parts of the assessment process. Please contact Dr Melissa Rouel to discuss whether this is suitable for your circumstances.