Background: Data on the prevalence of developmental disabilities in people who experience imprisonment and on their characteristics are lacking. Methods: The present authors identified adults with developmental disabilities who were released from Ontario provincial prisons in 2010 and a general population comparator group using administrative…

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…

Background: Pica is a very dangerous form of self-injurious behaviour because one occurrence can be lethal. Dealing successfully with dangerous pica in a large institution requires a high level of administrative support. It cannot be relegated to each psychologist to write a programme. A written behaviour programme is only one component of…

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…