Rheanna Mainzer

I am a Postdoctoral Biostatistician at the Murdoch Children's Research Institute (MCRI).

I am a member of the Clinical Biostatistics and Epidemiology Centre (CEBU). My current research examines methods for handling missing data in large-scale longitudinal studies. I also collaborate on research investigating the health and development of infants born preterm over the life course.

Prior to working at MCRI, I was a Melbourne Early Career Academic Fellow in the School of Mathematics and Statistics at The University of Melbourne. I completed my PhD in Statistics at La Trobe University, under the supervision of Paul Kabaila and Davide Farchione, and a Bachelor of Finance / Bachelor of Science (honours) also at La Trobe University.

I have also taught university courses across all year levels, and been involved with various outreach events.

Contact: rheanna dot mainzer at mcri dot edu dot au

Selected publications

Mainzer, R., Apajee, J., Nguyen, C.D., Carlin, J.B., Lee, K.J. (2021). A comparison of multiple imputation strategies for handling missing data in multi-item scales: Guidance for longitudinal studies. Statistics in Medicine.

Kabaila, P., Mainzer, R. (2019). Exact model averaged tail area confidence intervals. RSSDS2019 conference proceedings.

Kabaila, P., Mainzer, R. (2019). An alternative to confidence intervals constructed after a Hausman pretest in panel data. Australian & New Zealand Journal of Statistics.

Mainzer, R., Kabaila, P. (2019). ciuupi: an R package for computing confidence intervals that utilize uncertain prior information. The R Journal.

Kabaila, P., Mainzer, R. (2018). Two sources of poor coverage of confidence intervals after model selection. Statistics and Probability Letters.

Kabaila, P., Mainzer, R. (2018). Estimation risk for VaR and ES. Journal of Risk.

Kabaila, P., Mainzer, R., Farchione, D. (2017). Conditional assessment of the impact of a Hausman pretest on confidence intervals. Statistica Neerlandica.

Kabaila, P., Welsh, A.H., Mainzer, R. (2016). The performance of model averaged tail area confidence intervals. Communications in Statistics - Theory and Methods.

Kabaila, P., Mainzer, R., Farchione, D. (2015). The impact of a Hausman pretest, applied to panel data, on the coverage probability of confidence intervals. Economics Letters.

Teaching

I have lectured and coordinated:

Introduction to Biostatistics workshop, MCRI
Experimental Design and Data Analysis (1st year), The University of Melbourne

I have coordinated:

Applied Probability (4th year), La Trobe University

I have guest lectured:

Multiple Imputation Workshop Series, VicBiostat Summer School 2021
Analyses based on Linear Models (3rd year), La Trobe University
Applied Statistics (3rd/4th year), La Trobe University

I have tutored:

Experimental Design and Data Analysis (1st year), The University of Melbourne
Statistics for Life Sciences (1st year), La Trobe University
Statistics for Psychology (1st year), La Trobe University
Calculus 1 (1st year), The University of Melbourne
Number Systems and Linear Algebra (1st year), La Trobe University
Probability Models (2nd year), La Trobe University
Engineering Probability and Statistics (2nd year), La Trobe University
Linear Statistical Models (3rd year), The University of Melbourne
Applied Statistics (3rd/4th year), La Trobe University
Applied Probability (3rd/4th year), La Trobe University

Outreach

I wrote a fun little Christ-maths article for The Conversation. Read it here: https://theconversation.com/merry-christmaths-the-statistics-of-secret-santa-127730?fbclid=IwAR18uBghCjPTTgd0t2WYphhfM1S6mhniZ1LpdMSHuc1jS33ib-nnxcXqAWM .

I am the Vice President of Membership for the Statistical Society of Australia (SSA). Find out more about SSA here: https://www.statsoc.org.au.

You can read about my experience lecturing and subject coordinating for the first time here: https://fyimaths.weebly.com/fyi-blog .

I was the main organizer of the public lecture "Is this your card?" and the math puzzle night for the University of Melbourne Science Festival in August, 2018. You can watch the recording of the public lecture here: https://www.youtube.com/watch?v=IJWcHmbfJCY.

I was on the panel of speakers for the ACE forum on Women in Research and Higher Degrees in the Mathematical Sciences. You can read more about this here: https://www.austms.org.au/Publ/Gazette/2017/Sep17/ACE.pdf.

I've been involved with the teaching of a LaTeX workshop for undergraduate students.