This study aimed to describe the behavioral profile of individuals with SYNGAP1-ID. Parents/carers of 30 individuals aged 3-18 years old with a diagnosis of SYNGAP1-ID and 21 typically developing individuals completed the Vineland-3 Adaptive Behavior Scale and the Child Behavior Checklist. We found that those with SYNGAP1-ID showed fewer adaptive…

Background: Building 'key skills' may help prevent the development of challenging behaviour in children with an intellectual disability. The aim of this paper was to extend the current limited evidence in this area. Method: We undertook two studies with children with an intellectual disability in school settings: (1) a cross-sectional replication…

Introduction: Individuals with intellectual disabilities (ID) are at heightened risk of behavioral problems. Methods: This study investigated differences in the severity of challenging behaviors (CBs) among individuals with IDs at varying life stages. Data were collected from parents' retrospective interviews. Surveys were completed by 47 parents…

No research has been conducted on PTSD manifestation in children with severe or moderate intellectual disability (SID; IQ 20-49) and no PTSD measurement instrument was available. This pilot explores the psychometric properties of a new diagnostic instrument to investigate trauma and to classify PTSD in children with SID. The Diagnostic Interview…

Families of children with developmental disabilities are faced with many challenges in the course of their child's learning and language development. Feeding difficulty is recognised as an additional challenge in children with developmental disabilities which further affects the child's development and health. The severity can range from picky…

Challenging behaviour is a problematic issue for students with intellectual disability, including those in special education settings. While there is a need to address challenging behaviour in these schools, most Vietnamese classroom teachers struggle to deal with those behaviours due to their lack of effective strategies. In response, this first…

As a treatment for escape-maintained problem behavior, differential reinforcement of alternative behavior (DRA) is typically initiated by reinforcing compliance on a dense reinforcement schedule. This work schedule is then progressively thinned such that the individual is required to complete more work, up to some socially acceptable terminal…

Students with disabilities are 200% more likely to be restrained by school personnel compared to nondisabled peers (Katsiyannis et al., 2020). The purpose of this study was to examine the effectiveness of Nonviolent Crisis Intervention (NVCI) in de-escalating the risk behavior of children with disabilities from exceptional children (EC) teacher…

Objective: This study was conducted to explore the effect of motor coordination on repetitive behaviors in children with Autism Spectrum Disorder (ASD) aged 5-15 years. Methods: The study employed the causal-comparative design, one of the correlational survey designs. The study was carried out with data obtained from parents of 241 children with…

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…

Young people with developmental language disorder (DLD) often have poorer mental health compared to those without DLD. However, not all young people with DLD experience such difficulties. Two hundred and eighty-one young people at risk of DLD (45% Female; 53% White British) were identified from a UK based population-cohort. Main caregivers…

An interview-informed synthesized contingency analysis (IISCA; Hanley et al. in J Appl Behav Anal 47:16-36, 2014) and related skill-based treatment process can result in socially valid outcomes for clients exhibiting severe challenging behavior when implemented by professionals and then transferred to parents (e.g., Santiago et al. in J Autism Dev…

Introduction: Challenging behaviors are common in individuals with developmental disabilities and pose significant challenges to their well-being and that of their families and communities. Method: We explored the occurrence and predictors of self-injurious behavior and aggressive/destructive behavior in 372 Canadian youths (aged 4-20 years) with…

We further extended the use of a microswitch-cluster technology to promote object manipulation and to reduce tongue protrusion in seven children with Angelman syndrome. Study I included seven participants with severe to profound developmental disabilities. An ABB[superscript 1]AB[superscript 1] experimental sequence was implemented. During the…

The purpose of the study was to characterize the relationships between behavior problems, academic achievement, and loneliness of students in the upper and lower thirds of a social skills classification. Participants were 733 students (359 boys and 374 girls) ages 9 to 14 years, 642 without learning disabilities (LDs) and 91 with LDs. Their…