Specific Learning Disorder (SLD) is often misunderstood as a diagnosis that relies on identifying a significant discrepancy between cognitive ability and academic achievement. While cognitive assessment can provide valuable information about a student’s broader learning profile, SLD is not diagnosed simply because a student has a “high IQ but low achievement”.
Instead, SLD assessment involves understanding the nature of the student’s academic difficulties, the impact these challenges have on daily functioning, and whether difficulties have persisted over time despite appropriate instruction and support.
Cognitive assessment still plays an important role within this process. It can help identify broader cognitive strengths and vulnerabilities, provide insight into factors such as working memory or processing efficiency, and assist clinicians in considering whether difficulties may be better explained by an Intellectual Disability or other developmental factors. However, for most SLD assessments, the primary focus remains on the student’s academic functioning and the clinical interpretation of their learning profile over time.
This is often where assessment becomes more nuanced than many clinicians initially expect. Two students with similar test scores may present very differently once educational history, intervention access, functional impact, emotional wellbeing, language development, and broader neurodevelopmental factors are considered. Students may also demonstrate varying levels of responsiveness to intervention and support, which can further shape clinical understanding and formulation.
In practice, thoughtful diagnostic formulation is rarely about one score or one cut-off. It involves integrating assessment data with developmental history, observations, intervention history, educational context, and clinical judgement in a way that remains both evidence-informed and respectful of the individual’s unique learning experience.
At Flourish, these are the types of discussions that often arise within supervision, mentoring, and professional learning conversations with psychologists navigating learning assessments in real-world practice settings. Practical clinical resources and frameworks can be helpful, but so too is having space to reflect on the complexity and nuance that often sits behind diagnostic decision-making.
