Background: The purpose of this study was to assess the prevalence of unknown comorbid mental disorders in individuals with mild/moderate intellectual disability (ID) with/without autism spectrum disorders (ASD) and to compare the severity of challenging behavior with respect to the comorbidity of ASD and comorbid psychiatric disorders. Methods:…

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…

Introduction: Despite the high prevalence of mental health issues for young people with intellectual disability (ID), young people with ID can struggle to receive the mental health support they need. The aim of this study was to examine a new community-based, clinical mental health service for young people (12-25 years) with co-occurring ID and…

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…

Introduction: The primary aim of this retrospective study was to assess differential associations between sleep disturbances with externalizing/internalizing problems, ADHD profiles (inattention, hyperactivity/impulsivity), and social impairment among children with ADHD, autism spectrum disorder (ASD), and comorbid diagnoses (ASD+ADHD). Methods:…

Introduction: Children and young adults with Down syndrome can demonstrate increased behavior problems compared to their typically developing peers through childhood and adolescence. This study aims to: (1) identify common patterns of behaviors in children and young adults with Down syndrome and (2) assess potential medical comorbidities that…

Introduction: Youth with intellectual disabilities (ID) demonstrate higher rates of disruptive behavior disorders (DBDs) than youth with typical development (TD). DBDs such as oppositional defiant disorder (ODD) predict higher rates of delinquency during adolescence. Yet, few studies have examined risk-taking and delinquency among youth with ID.…

Introduction: The purpose of this study was to gain additional insight on patterns of behavior of three individuals dually diagnosed with intellectual disability (ID) and bipolar disorder as they cycled between elevated and depressed mood states. Methods: Data were collected from weekly, one-hour observations across a period of several months. The…

Individuals with intellectual disability (ID) experience high rates of psychiatric disorders, and coinciding high rates of emergency service use. The current study seeks to explore strategies to improve outcomes by reporting a one-year prospective investigation among 41 individuals (Mean age = 32 years, SD = 12) with ID and mental health needs who…

Adolescents with intellectual disability are at significant risk for developing concomitant mental health and behavior problems. Youth who experience "dual diagnosis" face great challenges, and require interventions that will promote their autonomy, self-determination, and adaptive functioning. In this article, we devote attention to…

Introduction: The presence of comorbid mental illness in individuals with intellectual and developmental disabilities (IDD) has been shown to have additional negative impact on parents and caregivers. However, the impact of such dual diagnoses on typically developing siblings has yet to be examined. Methods: Parents and typically developing…

Approximately one third of adults with intellectual and developmental disabilities have emotion dysregulation and challenging behaviors (CBs). Although research has not yet confirmed that existing treatments adequately reduce CBs in this population, dialectical behavior therapy (DBT) holds promise, as it has been shown to effectively reduce CBs in…

Rates of challenging behaviors were assessed in 175 adults with intellectual disability (ID) or ID and a comorbid autism spectrum disorder (ASD). The relationship between ASD diagnosis, race, and challenging behaviors was assessed using the "Autism Spectrum Disorders-Behavior Problems for Adults (ASD-BPA)." Those with ASD and ID were…