1. School of Psychology and Public Health, Olga Tennison Autism Research CentreLa Trobe University Bundoora VIC Australia
2. Diagnosis and DevelopmentMurdoch Children's Research Institute Parkville VIC Australia
3. Department of PaediatricsUniversity of Melbourne Parkville VIC Australia
4. School of Psychology and Public HealthLa Trobe University Bundoora VIC Australia
5. Department of Mathematics and StatisticsLa Trobe University Bundoora VIC Australia