Background: The aim was to investigate the aggressive behavior of young people in specialized institutions with intellectual disability (ID) with or without autism spectrum disorder (ASD). Method: Data on 305 institutionalized young people were collected using two aggression scales, the 'Children's Scale of Hostility and Aggression:…

Challenging behaviour may not be part of the diagnostic criteria for Autistic Disorder but they are frequently exhibited by children and adults with this condition. Levels of challenging behaviours are highest in individuals with an autism spectrum disorder (ASD) and co-occurring intellectual disability (ID). The sample for this study consisted of…

The article relates to the author's former experiences gained during the work with individuals with developmental disabilities at the Association for the Help of Retarded Children, Nassau Chapter in New York State in the United States (US), as well as with autistic children at the Loddon School in Hampshire County in the United Kingdom (UK).…

Behavior problems such as aggression, property destruction, stereotypy, self-injurious behavior, and other disruptive behavior are commonly observed among adults with intellectual disabilities (ID), autism spectrum disorders (ASD), and epilepsy residing at state-run facilities. However, it is unknown how these populations differ on behavior…

Background: The aim of this study was to reevaluate the reliability (internal consistency, inter-rater and re-test) and the factor structure of the Behavior Problems Inventory (BPI-01) with adults with intellectual disabilities who resided in a state-run developmental centre. Methods: BPI-01 was administered to informants who had known…

A survey of 39 psychologists at a state school for mentally retarded persons assessed the prevalence of self-restraint, self-injurious behavior (SIB) and other maladaptive behaviors. Results indicated that almost all clients engaging in self-restraint also engaged in self-injurious behavior. (Author/DB)