She obtained her PhD from McMaster University in Psychology in 2009. Her research program tackles two main themes: 1) the cognitive mechanisms and understandings of clinical reasoning and 2) issues of validity in assessment in health professions education. More specifically, she studies how learners select relevant information, how they formulate hypotheses, develop treatment plans, and is interested in the development of expertise and markers for expert performance. She also investigates various conceptions of validity and validation, and how these understandings can influence assessment practices.