Jessica Kasza is an Associate Professor in biostatistics in the School of Public Health and Preventive Medicine at Monash University in Melbourne, Australia. She received her PhD from the University of Adelaide in 2010. At Monash, she leads the development of statistical methodology for longitudinal cluster randomised trials, including the stepped wedge and cluster cross over designs, with a current focus on the development of “incomplete” stepped wedge designs. She also has interests in the comparison of healthcare providers and in causal inference, and is a former President of the Statistical Society of Australia.