Abstract:Standardized, norm-referenced language assessment tools are used for a variety of purposes, including in education, clinical practice, and research. Unfortunately, norm-referenced language assessment tools can demonstrate floor effects (i.e., a large percentage of individuals scoring at or near the lowest limit of the assessment tool) when used with some groups with neurodevelopmental disorders (NDDs), such as individuals with intellectual disability and neurogenetic syndromes. Without variability at the lower… Show more
Learning-related NDDs, such as Specific Learning Disorders (SLD) and Attention-Deficit/Hyperactivity Disorder (ADHD), appear in childhood, and due to their high connectivity with children's schooling, they attract the intense interest of scientists. Successive questions arise about when and what is the most appropriate intervention, what are the benefits, what is the method of implementation, where should the intervention take place, and other related questions that arise always with the aim of optimizing support. But the question that precedes all the above is which exactly is the disorder? Is it only one? How are its symptoms distinguished and how could anybody be sure of its distinctiveness from others with a high rate of overlap? The introduction of the term ‘spectrum of NDDs' could pave the way for a re-approach of the clinical continuum of NDDs. This chapter aims to open a discussion and raise concerns about overlapping symptoms in learning-related NDDs, with the aim of achieving better intervention through a clearer system of diagnosis.
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