During writing, perceptual, motor, and cognitive processes interact. This study explored the predictive value of several factors on handwriting quality as well as on speed in children with Autism Spectrum Disorder (ASD). Our results showed that, in this population, age, gender, and visual-motor integration significantly predicted handwriting…

File review data were used to explore the impact of a large-scale publicly funded Intensive Behavioral Intervention (IBI) program for young children with autism. Outcomes were compared for 61 children who received IBI and 61 individually matched children from a waitlist comparison group. In addition, predictors of better cognitive outcomes were…

This study reports on predictors of outcome in 332 children, aged 2-7 years, enrolled in the community-based Intensive Behavioral Intervention (IBI) program in Ontario, Canada. Data documenting children's progress were reported in an earlier publication (Perry et al., 2008). The present paper explores the degree to which four predictors (measured…

Data from 1433 children and adolescents with autism spectrum disorders (ASD) participating in the Simons Simplex Collection were examined to (1) investigate change in social-communication symptoms, and (2) examine predictors of improvement, particularly community-based treatments. Measures included the "Autism Diagnostic Interview--Revised"…

Research in autism spectrum disorders (ASD) described individual differences in response to intervention. This study explored child and parental characteristics at baseline that predict outcomes in adaptive skills and acquisition of cognitive gains. Seventy-eight children aged 15-35 months diagnosed with ASD by standardized diagnostic tools were…

The current study evaluated risk factors for the occurrence, frequency and severity of challenging behavior among a sample of individuals with a diagnosis of autism, under the age of eighteen, in Ireland. Age, gender, hours of intervention received, age at diagnosis, presence of challenging behavior at diagnosis and treatment type at diagnosis…

Our study of 477 children with autism (1-15 years, IQs 9-146) showed that parent reported sleep problems are found in most children with autism and are not significantly related to age, IQ, gender, race, parent occupation, neuropsychological functioning, and learning ability. However, sleep problems increased with severity of autistic symptoms and…