He directs one of Australia's oldest running longitudinal studies of social-emotional development, The Australian Temperament Project Generation 3 Study. He is actively involved in a number of Australasian cohort studies and is National Convenor of the Australian Research Alliance for Children and Youth (ARACY) Longitudinal Studies Network. He has been based at the RCH since 1994, completed his PhD through the University of Melbourne in 2000, and currently holds a joint appointment in lifecourse epidemiology with the MCRI and Deakin University. He is founding convener of the MCRI LifeCourse initiative, and has an active interest in helping researchers gain a better understanding of cohort studies run on campus, population and clinical, and how they might be accessed for advancing understanding of child health and development.​