Black, Latinx and other minoritized students have long been overrepresented in the high-incidence disability classifications including Learning Disability, Emotional Disturbance, Intellectual Impairment, and Speech and Language Impairment. Inappropriate special education placement denies students access to the general education curriculum and…

Possible symptoms of intellectual disability (ID) include delayed physical development that becomes more pronounced as the disability progresses, delayed development of gross and fine motor skills, sensory perception problems, and difficulty grasping the integrity of objects. Although there is no cure or reversal, research has shown that extensive…

This brief, co-produced by the National Center on Deaf-Blindness (NCDB) and Accessible Teaching, Learning, and Assessment Systems (ATLAS), provides important information about students with dual sensory loss who also have significant cognitive disabilities, as well as recommendations for identification and implications for instruction. The…

This brief, co-produced by the National Center on Deaf-Blindness (NCDB) and Accessible Teaching, Learning, and Assessment Systems (ATLAS), provides important information about the differences between students with significant cognitive disabilities who have cortical visual impairment (CVI) and those who have other types of visual impairment (VI).…

The Individuals with Disabilities Educational Act (IDEA) safeguards the learning of students with disabilities and protects them from nondiscriminatory assessments that identify their disabilities and align them with the special education support and services required. However, when the IDEA is not adequately followed, students with disabilities…

In this article, we demonstrate the potential of machine learning approaches as inductive analytic tools for expanding our current evidence base for policy making and practice that affects people with intellectual and developmental disabilities (IDD). Using data from the National Core Indicators In-Person Survey (NCI-IPS), a nationally validated…

We examined special education classifications among students aged 3-21 in North Carolina public schools, highlighting autism spectrum disorder (ASD) and intellectual disability (ID). Results revealed variability by county in ASD and ID prevalence, and in county-level ratios of ID vs. ASD classifications. Sociodemographic characteristics predicted…

This paper focuses on nineteenth-century theories according to which intellectual disabilities find expression in physical impairment. Such theories became widespread in Switzerland due to the growing interest in a condition then called 'cretinism' -- a specific form of 'idiocy' in the course of which mental and physical disintegration went hand…

Individuals living with intellectual disability can have multiple co-occurring medical conditions including associated genetic diagnoses. The number of genetic etiologies associated with ID is growing, with some quite new and rare, and others more common and associated with what is often considered a syndrome. In the context of genetic etiologies…

The Individuals with Disabilities Education Act (IDEA; P.L. 108-446) is the primary source of federal funding to states for the identification and education of children with disabilities. The majority of IDEA appropriations are allocated to states by formula to carry out activities under Part B, which covers 14 disability categories. Each state is…

This report describes a project that uses existing data sets to describe the population of students with significant cognitive disabilities and known or suspected dual sensory loss. It includes students with suspected dual sensory loss because students with significant cognitive disabilities are reported to have unidentified sensory loss (Erickson…

The international classification of functioning, disability, and health for children and youth (ICF-CY) developed by the World Health Organization (WHO) is a framework for understanding concepts of disability specific to children and youth. This framework has been used in countries around the world to support the education of children with…

Background: Current literature mainly focuses on adaptive profiles from a categorical perspective but yields inconclusive results. The present study puts a transdiagnostic approach next to a "classical" categorical approach. Methods: In this study, 222 children (5-18 years old) with autism and/or intellectual disability participated.…

E-Learning environments are enhancing both their functionalities and the quality of the resources provided, thus simplifying the creation of learning ecologies adapted for students with disabilities. The number of students with disabilities enrolled in online courses is so small, and their impairments are so specific that it becomes difficult to…

The issue of pain warrants attention as, by virtue of having an intellectual disability, a person may have associated medical or physical conditions and associated factors increasing their risk of pain disorders. People with intellectual disability experiencing pain need to be provided with the best possible care. The focus of this article is on…