The interactions between sleep problems, autism symptoms and emotional and behavioural difficulties were explored using network analysis in 240 autistic children (mean age: 8.8 years, range 5-13 years) with moderate to severe sleep problems. Findings revealed a highly connected and interpretable network, with three separate clusters identified of…

Introduction: Individual social status among peers (i.e., acceptance and rejection) has important implications for students' social and academic development. The present study investigates the role of individual problem behavior and classroom norms in the development of acceptance and rejection among students with intellectual disabilities (ID) in…

Background: The Developmental Behaviour Checklist (DBC) is an established, internationally used questionnaire for assessing behavioural and emotional problems among young people with developmental or intellectual disabilities (ID). The present study aims to evaluate the psychometric properties of its German teacher version (DBC-T). Method: The…

Smith-Magenis syndrome (SMS) is a genetic syndrome most often caused by a deletion on chromosome 17 or more rarely by a mutation in the retinoic acid-induced 1 gene. The aim of this study was to investigate the Developmental Behavior Checklist (DBC) profile of persons with SMS and the associations between behavioural and emotional problems, age,…

Background: Traditional treatment for the behavioural symptoms in autism spectrum disorder (ASD) remains unsatisfactory. There is an urgent need for new, biologically relevant therapies that target both the core and comorbid symptoms that children may experience. This article builds on research previously published by the authors. Method: We…

Children with autism spectrum disorders often exhibit comorbid behavioral problems. These problems have an impact on the severity of the core symptoms, the progression of the disorder as well as on the families' quality of life. We evaluated the effectiveness of the Stepping Stones Triple P group parent training program as a supplementary…

Background: The Signposts program is an evidence-based intervention system for parents of children with intellectual disability and problem behaviours. This study provided an initial investigation of the outcomes for mothers associated with father participation in Signposts, using data collected from the Signposts Statewide project, conducted in…

Little is known about the behavioral characteristics of adults with Down syndrome (DS) without dementia. The main purpose of this study was to investigate the psychopathology and social behavior among adults with DS compared to adults with nonspecific intellectual disability (NSID). Thirty-four adults with DS were individually matched with 34…

This study sought to understand the profile of and the factors which impact upon challenging behaviors among children with autism spectrum disorders (ASD) and multiple disabilities (MD). Teachers of 322 and 132 children with ASD and MD, respectively, attending special schools in Singapore, completed the Developmental Behavior Checklist, Teacher…

This study describes the profile of and relationships between adaptive skills and the maladaptive behaviors exhibited by adolescents with autism spectrum disorders (ASD) attending special schools in Singapore. Parents of 20 adolescents with ASD attending special schools completed the Development Behavior Checklist (DBC; Einfeld & Tonge, 1995;…

Prader-Willi syndrome (PWS) is characterized by temper tantrums, impulsivity, mood fluctuations, difficulty with change in routine, skinpicking, stubbornness and aggression. Many studies on behavior in PWS are limited by sample size, age range, a lack of genetically confirmed diagnosis of PWS and inconsistent assessment of behavior. The aim of…

Background: Parenting stress was investigated in mothers with a child with Angelman syndrome (AS) or Prader-Willi syndrome (PWS), which are genetically related. Method: Mothers of 24 children with AS and 23 children with PWS (2-12 years) completed the Nijmegen Parenting Stress Index-Short, Developmental Behaviour Checklist, and Vineland Screener…

Individual change and variation in emotional/behavioral disturbance in children and adolescents with intellectual disability has received little empirical investigation. Based on 11 years of longitudinal data from the Australian Child to Adult Development Study, we report associations among individual differences in level, rate of change, and…

It is well known that communities face high costs in the care of individuals with intellectual disability (ID). Factors that influence those costs are less well studied. This study examined the relationship between behavioral problems and the costs of caring for children with ID. Parents/family carers of 109 children with ID were surveyed using a…

Background: While there have been several evaluations of programs to help parents manage difficult behaviour of their child with an intellectual disability, little research has focused on the evaluation of such programs when delivered to large populations. Method: The benchmarks recommended by Wiese, Stancliffe, and Hemsley (2005) were used to…