Accredited Statistician (AStat), Statistical Society of Australia, 2016 -
PhD in Statistics, University of Mississippi, 2003
MSc in Mathematics, University of Mississippi, 1997
BSc in Mathematics, Centenary College of Louisiana, 1995
I am part of the Biostatistics and Ecology research group in the School of Mathematics and Statistics. My research interests are focused on statistical methods applied to epidemiological, psychological and population health data. My main application area is in road safety and injury research, although I routinely collaborate with cancer, psychological and cardiovascular researchers.
There are many statistical challenges in quasi-experimental designs due to lack of randomisation. This makes it difficult to assess the impact of population-based interventions due to unmeasured confounding. Some examples of interest are assessing the effects of bicycle helmet legislation and measures to limit access to guns. Interrupted time series, with or without a control, offer an improvement over other methods. However, little work has been done in this area and there is little standardization of analytic approaches across various fields such that varying analyses can lead to disparate conclusions using the same data source.
It is well known that statistical significance is a function of sample size. This is problematic because important effects can go unnoticed in studies with small sample sizes, and unimportant effects can give small p-values from large studies. Effect sizes can complement significance testing by removing the influence of sample size. A lot of work on this topic can be found in psychological research but little has been done on epidemiological measures like the odds ratio, relative risk or hazards ratio.
NHMRC MRFF Grant 2020 -- 2025, J. Pimanda, M. Polizzotto, M. Hertzberg, A. Wei, M. Dawson, R. Lock, A. Unnikrishnan, J. Olivier, C. Fong, P. Campbell, AZA+: A multi-site phase 1/2 dose escalation/expansion trial combining azacitidine and defactinib for high-risk myelodysplastic syndrome patients who fail to respond to azacitidine alone
Queensland Department of Transport and Main Roads 2019 -- 2020. J. Hatfield, S. Boufous, R. Friswell, J. Olivier, A. Williamson. Development and application of a young driver evaluation framework and toolset
ARC Discovery 2017 -- 2019, J. Brown, L. Bilston, J. Charlton, S. Koppel, L. Keay, J. Olivier, Design features critical for correct use of child car restraints
Transport for New South Wales 2017 -- 2018, T. Senserrick, S. Boufous, J. Hatfield, J. Olivier, A Williamson, GJ Knight, Evaluation of the NSW Motorcycle Graduated Licencing System
Swedish Transport Administration 2016 -- 2018, J. Olivier, R. Grzebieta, Systematic review of the impact of bicycle helmet use and legislation on cycling injury and participation
Queensland Department of Transport and Main Roads 2016 -- 2017, T. Senserrick, S. Boufous, J. Hatfield, J. Olivier, Queensland's Graduated Licensing System (GLS)
2 Web of Science Highly Cited Papers (1 in Mathematics, 1 in Social Sciences)
University of Mississippi Dissertation Fellowship
John A. Hardin Mathematics Award, Centenary College
Paul and Myrtle Bender Mathematics and Physical Science Scholarship, Centenary College
Statistical Advisor, BMJ Open
Associate Editor, Journal of Road Safety
Editorial Board, ANZ Journal of Statistics
Editorial Board, Injury Prevention
Member, American Statistical Association