Introduction: Families have a significant role in the lives of people with intellectual disabilities and challenging behaviors. However, it is not clear how actively families are involved when people with intellectual disabilities and challenging behaviors are living in out-of-home care. This scoping review explored the frequency and type of…

People with severe disabilities have a higher prevalence of many health conditions when compared with the general population. Examples include gastrointestinal conditions, chronic allergies, epilepsy, and sleep dysregulation, among many other health concerns. Of particular interest in the treatment of challenging behavior is the comorbidity of…

Although global associations between language and behavioral development are well established, relations among components and subgroups within these disorders remain unclear. The primary aim of this study was to explore whether language components differed by behavioral subtypes: internalizing only, externalizing only, or both. To control for…

Introduction: Individuals with Down syndrome (DS) and IDD have lower psychiatric disorders rates than other individuals with IDD, and more information is needed about possible unique mental health needs of this group. Method: De-identified intake data for individuals with IDD, 101 with DS (mean age 27) and 4,366 without DS (mean age 25) served in…

Background: The aim was to investigate the aggressive behavior of young people in specialized institutions with intellectual disability (ID) with or without autism spectrum disorder (ASD). Method: Data on 305 institutionalized young people were collected using two aggression scales, the 'Children's Scale of Hostility and Aggression:…

The article examines issues related to identification of children with autism spectrum disorders (ASDs). The focus is on the Diagnostic Criteria in DSM-5 diagnostic features, associated features supporting diagnosis, and prevalence are discussed.

The article examines issues related to identification of children with autism spectrum disorders (ASDs). The focus is on the Diagnostic Criteria in DSM-5 diagnostic features, associated features supporting diagnosis, and prevalence are discussed.

We compared the prevalence of various medical and behavioral co-occurring conditions/symptoms between 4- and 8-year-olds with autism spectrum disorder (ASD) from five sites in the Autism and Developmental Disabilities Monitoring Network during the 2010 survey year, accounting for sociodemographic differences. Over 95% of children had at least one…

New Zealand has few estimates of the prevalence of autism spectrum disorder and no national registry. The use of administrative data sources is expanding and could be useful in autism spectrum disorder research. However, the extent to which autism spectrum disorder can be captured in these data sources is unknown. In this study, we utilised three…

Little is known about Autism Spectrum Disorder (ASD) in persons over age 50. In a retrospective, naturalistic review of 74 individuals aged 30 and older meeting DSM-5 criteria for ASD, the point prevalence of behavioral and neuropsychiatric symptoms (BNPS) declined significantly for 12 of 13 BNPS over a mean of 25 years while many other features…

Scientists and clinicians regularly use clinical screening tools for attention deficit/hyperactivity disorder (ADHD) to assess comorbidity without empirical evidence that these measures are valid in youth with autism spectrum disorder (ASD). We examined the prevalence of youth meeting ADHD criteria on the ADHD rating scale fourth edition…

Publicly funded mental health programs play a significant role in serving children with autism spectrum disorder. Understanding patterns of psychiatric comorbidity for this population within mental health settings is important to implement appropriately tailored interventions. This study (1) describes patterns of psychiatric comorbidity in…

Background: In this article, we describe our study of the prevalence of behaviour that challenges and which internal factors are related to behaviour that challenges in 21 people (fourteen are male, seven are female, varying in age from 12.4 to 42 years; mean 26.6, SD 7.27) with intellectual disabilities who have hearing impairments. Materials and…

Based on notions posited by problem behavior theory, the primary goal of the current study was to examine the possibility that adolescents who engage in NSSI are not a homogeneous group but are rather divided into 2 subgroups: (a) adolescents who exclusively engage in NSSI, and (b) adolescents who are involved in NSSI alongside other problem…

The number of students identified under the Individuals With Disabilities Education Act (IDEA) with an emotional disturbance (ED) has remained remarkably stable over the last 30 years. During this time, approximately 1% of the school-aged population has been identified as disabled under the criteria set forth in IDEA (Kim, Forness, & Walker,…