Audrey-Anne Vallée has been an assistant professor in the Department of Mathematics and Statistics since July 2019. D. in Statistics from the Université de Neuchâtel, Switzerland. Prior to her doctoral studies, she completed her bachelor's degree in mathematics and her master's degree in statistics at Université de Montréal. Audrey-Anne's research focuses on sampling and nonresponse. She is particularly interested in the treatment of missing values in databases in order to improve the quality of analyses. She is developing imputation methods to replace missing values with artificial ones, evaluating survey quality and adapting regression methods in the presence of nonresponse.