Australian Temperament Project

The Australian Temperament Project (ATP) is an ongoing, longitudinal study following young people’s psychosocial development from infancy to adulthood, investigating the contribution of personal, family, peer and broader environmental factors to adjustment and wellbeing. Commencing in 1983, this internationally renowned study has so far collected 15 waves of data across the first 28 years of life. The ATP is investigating the development of problems such as learning difficulties, antisocial behaviour, substance abuse, anxiety and depression, as well as positive development including social competence, supportive family and peer relationships and civic participation.


The Australian Temperament Project is a joint project between the Australian Institute of Family Studies, the Royal Children's Hospital, the University of Melbourne and Deakin University. The project is led and supported by the Australian Institute of Family Studies, and is also supported by a grant from the Australian Research Council.

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