Background: This systematic review aimed to explore the effects of sport and physical activity on behaviour and emotional problems, mental health and psychosocial well-being of children and adolescents with intellectual disability. Method: Five databases were searched systematically (ERIC, MEDLINE, PsycINFO, SportDISCUS and SCOPUS), up to 28…

Objective: This study evaluated the effectiveness of the Parents Plus Special Needs (PPSN) programme, a seven-week parenting group intervention for parents of adolescents with intellectual disabilities. Method: In a cluster randomised controlled trial, 24 intellectual disability services supporting families of adolescents with an intellectual…

Background: Previous studies and national reports have all noted that a significant proportion of the young people who display harmful sexual behaviours have intellectual disabilities. However, research on the topic has been scarce. This study presents a systematic review of the literature relating to clinical instruments specifically developed or…

Background: Social competence training for individuals with comorbid autistic spectrum disorder (ASD) and intellectual disability was scarce and had methodological limitations in sample sizes and outcome measures. Aims: The current study addressed the limitations and reported a social competence intervention for adolescents and adults with ASD and…

Research on follow-up outcomes of systemic interventions for family members with an intellectual disability is scarce. In this study, short-term and long-term follow-up outcomes of multisystemic therapy for adolescents with antisocial or delinquent behaviour and an intellectual disability (MST-ID) are reported. In addition, the role of parental…

Background: Behaviour problems are most common in people with intellectual disabilities. Nature of behaviour problems can vary depending upon the age, sex and intellectual level (IQ). Objectives: This study examined the distribution of behaviour problems across intellectual disability categories and their association with IQ age and sex in…

Background: Children with developmental disabilities who exhibit challenging behaviour are potentially subject to the use of coercive interventions. The aim of the study was to investigate the prevalence of the use of coercive measures by authorities, according to parents' reports. Materials and Methods: A postal survey was distributed, as a total…

Background: Accurate measurement of adaptive behaviour is important in both clinical and research contexts. While several good clinical measures exist, as well as brief research measures for adults with intellectual disability, there is need for a brief and efficient measure for research with children and youth. We present preliminary psychometric…

Background: The aim of the present study was to evaluate the effects of the sensory equipment provided in a multi-sensory environment (MSE) and the level of social contact provided on levels of stereotyped behaviours assessed as being maintained by automatic reinforcement. Method: Stereotyped and engaged behaviours of two young people with severe…

Background: The present study examines understanding of challenging behaviour among a sample of children and adolescents with a moderate intellectual disability, and investigates their behavioural intentions towards peers with challenging behaviour. Methods: The study involved the collection of quantitative and qualitative data. In the…

Background: This study described similarities and differences in the 5-year stability and change of problem behaviour between youths attending schools for children with mild to borderline (MiID) versus moderate intellectual disabilities (MoID). Methods: A two-wave multiple-birth-cohort sample of 6 to 18-year-old was assessed twice across a 5-year…

Background: Recent studies have suggested that cognitive biases may play an important mediating role in aggressive outbursts from people with mild intellectual disabilities (IDs). Essentially, some individuals may frequently perceive other people as acting towards them in a hostile fashion. This biased perception may develop through repeated…

Background: Previous research has identified various dimensions of social support that are positively associated with parental well-being. However, most research does not include multiple measures of social support and uses heterogeneous samples in terms of child characteristics such as age and severity of intellectual disability. Methods:…