Assessment of schizophrenia (SCZ) in people with autism spectrum disorder (ASD) is complicated due to confounding symptoms between ASD and SCZ. These confounding factors are aggravated when the patient has sparse verbal skills. A selective review was conducted to identify behavioural equivalents when assessing SCZ in individuals with ASD with…

Growing interest in the pathogenesis of autism spectrum disorders (ASDs) and other intellectual and developmental disabilities (IDD) has led to emerging evidence implicating a role for oxidative stress. However, understanding the strength of this association is made challenging by the use of a variety of purported biomarkers of oxidative stress,…

This meta-analytic review investigated interventions for transition-age youth diagnosed with autism, intellectual disability, or extensive support needs. Nineteen group design studies with 215 effect sizes met inclusion criteria. A robust variance estimation procedure that accounts for the clustering effect sizes within studies was used to…

Approximately 50 years of research on rapid toilet training (RTT) first used by Azrin and Foxx (1971) indicates RTT is effective for teaching individuals with intellectual and developmental disabilities (IDD) independent toileting routines. Professionals focused on toilet training may be familiar with RTT procedures but be less informed about the…

A systematic literature review was undertaken to ascertain the prevalence of self-harm and suicidal behaviour in children and young people under 18 years old with a diagnosis of autism spectrum disorder (ASD), with or without an intellectual disability. There was variation in the reported prevalence rates but results suggested that rates of both…

The etiological significance of neurological disorders in autism is debated, but it is clear that they complicate support provision and clinical management, and can have negative impact on outcomes. This systematic review and meta-analysis explored the full range of co-occurring neurological disorders in autism. We estimated the odds of having…

Restricted or repetitive behavior (RRB) is common for individuals with visual impairment (VI), autism spectrum disorder (ASD), and intellectual disability. Previous reviews have suggested that VI may moderate the effectiveness of behavioral interventions to decrease RRB. A search of the single case literature resulted in 30 studies and 40…

The literature from inception to 2020 on the prevalence of epilepsy in autistic individuals was systematically reviewed and further explored by subgroup analyses and meta-regression models. This systematic review is registered with PROSPERO (CRD42020179725). A total of 66 studies from 53 articles were included. The updated pooled prevalence of…

Although the impact of peer-mediated interventions on students with intellectual and developmental disabilities (IDD) has been studied extensively, little attention has focused on the peers without disabilities who are so central to these interventions. We reviewed 98 studies to examine the portrait of more than 3,000 peers without disabilities…

Purpose: The concept of Quality of Life (QoL) for people with neurodevelopmental disorders primarily focuses on deinstitutionalisation and community inclusion. This population, however, often presents with comorbid diagnoses and is sectioned to treatment facilities under the Mental Health Act. The aim of this paper is to review the existing…

For children with autism or intellectual and developmental disabilities who also have complex communication needs, communication is a necessary skill set to increase independence and quality of life. Understanding the how, where, and communication style being taught is important for identifying deficits in the field as well as which interventions…

The purpose of this literature review was to synthesize recent research (2009-2018) for teaching science to students with intellectual disability and intellectual disability/autism. Authors identified a total of 15 studies; of these, 12 were determined to be methodologically sound studies using the Council for Exceptional Children quality…

Purpose: A systematic review was performed to determine the extent to which orthographic facilitation, a strategy to improve word learning, has been demonstrated in the literature for children and adolescents from clinical categories such as developmental language disorders (DLD), autism spectrum disorders (ASD), Down syndrome, dyslexia, hearing…

Introduction: Individuals with Autism Spectrum Disorder display a pattern of social communication deficits and restricted and repetitive behaviors that leave them particularly vulnerable to developing anxiety. The presence of a co-occurring Intellectual Disability further complicates the situation, compromising traditional diagnostic techniques…

Classroom noise impairs students' cognition and learning. At a first glance, it seems useful to prevent the negative effects of noise on academic learning by wearing noise-cancelling (NC) headphones during class. The literature and guidelines emphasize the academic benefits of wearing NC headphones (decreased auditory distraction, increased…