This study was conducted to examine the effectiveness of Prevent-Teach-Reinforce for Young Children (PTR-YC) using a single-case experimental design. PTR-YC is a manualized intervention designed to address challenging behaviors for children in preschool and childcare settings using the framework of positive behavior support. Participants included…

Background: Individuals with fragile-X syndrome exhibit developmental delay, hyperexcitation and social anxiety; they also show lack of attention and hyperactivity. Few studies have investigated whether levels of functioning change with increasing age. Here, we explored developmental changes across adolescence in the cognitive and behavioural…

There is very little known about how sibling characteristics may influence the social functioning of a child with an autism spectrum disorder (ASD). The current study utilized data from the Simons Simplex Collection (SSC; n=1355 children with ASD and 1351 siblings) to investigate this relationship. Phenotypic measures included (a) the "Autism…