Early preventive interventions can improve outcomes in childhood, but the most effective interventions can continue to deliver benefits through the life course. The Fast Track intervention, a randomized controlled trial for children at risk of conduct problems, has lowered psychopathology, substance use problems, and criminality and elevated…

Background: This study explored the role of demographic, psychosocial, stress and life event-related risk factors for psychopathology and challenging behaviour in a clinical sample of adults with Down syndrome. Method: A convenience sample of adults with Down syndrome seen through a specialised clinic was assessed through interviews and…

Autistic adults who have a history of committing crimes present a major problem for providers of services in terms of legal disposal options and possible interventions, and greater understanding of this group and their associated needs is required. For this reason, we aimed to investigate the face validity of a proposed sub-typology of autistic…

Background: Comorbid psychopathology and stress were considered possible mediators that may explain the relationship between some autistic traits and repetitive behaviours. The current study sought to examine the mediational effects of comorbid psychopathology, executive dysfunctions and stress in the relationship between some autistic traits and…

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…

Background: Obsessive-compulsive (O-C) traits, and excessive food intake are well known behavioural manifestations among individuals with Prader-Willi Syndrome (PWS). Other unwanted behaviours are also frequently observed, but they need a more specific investigation, especially in the adult population. Methods: The behaviour of 31 PWS adults was…

Researchers suggest that social skill deficits and psychiatric issues may be affected by the presence of maladaptive behaviors in people with intellectual disabilities. A sample of 39 participants with intellectual disability was surveyed for the presence of psychiatric symptoms and social skills deficits. Outcomes indicated that individuals with…

The Strengths and Difficulties Questionnaire (SDQ) is an instrument developed by Goodman for screening child and adolescent psychopathology. The aim of this study is to contribute to the analysis and validation of the internal structure of the Italian SDQ teacher version (SDQ-T). The SDQ-T was completed by 301 teachers, evaluating 3,302 children…

Experiential avoidance (EA) has been conceptualized as the tendency to avoid negative internal experiences and is an important concept in numerous conceptualizations of psychopathology as well as theories of psychotherapy. Existing measures of EA have either been narrowly defined or demonstrated unsatisfactory internal consistency and/or evidence…

Background: Despite the increased risk of depression and conduct problems in children of depressed parents, the mechanism by which parental depression affects their children's behavioral and emotional functioning is not well understood. The present study was undertaken to determine whether parental depression represents a genuine environmental…

We investigated the relationship between challenging behavior and co-morbid psychopathology in adults with intellectual disability (ID) and autism spectrum disorders (ASDs) (N=124) as compared to adults with ID only (N=562). All participants were first time referrals to specialist mental health services and were living in community settings.…

The aim of this study was to investigate the prevalence of mental disorders in a Norwegian sample of adults with intellectual disability (ID) using the "Psychopathology Checklists for Adults With Intellectual Disability" (P-AID; Hove & Havik, 2008), a screening instrument adopting diagnostic criteria from the "Diagnostic…

Background: Although the elevated occurrence of epilepsy in people with intellectual disabilities (ID) is well recognized, the nature of seizures and their association with psychopathology and carer strain are less clearly understood. The aims were to determine the prevalence and features of epilepsy in a community-based population of adults with…

The authors analyzed delinquent development from age 12 to 32 in 270 male offenders who underwent residential treatment for problematic behavior and delinquency in a Dutch juvenile justice institution. Stable personality and background characteristics were measured on admission. The development of offending was examined on the basis of conviction…

This study was designed to establish the initial psychometric properties of the first scale specifically developed for behavior problems of adults with Autism Spectrum Disorders (ASD) and intellectual disability (ID). The Autism Spectrum Disorders-Behavior Problems for Adults (ASD-BPA) consists of 20 items in which raters indicate if each item is…