Malcolm Williams is Professor and Codirector of the Cardiff Q-Step Centre for Quantitative Methods pedagogy. Until July 2014, he was the Director of the School of Social Sciences, at Cardiff, and prior to this Professor of Social Research Methodology at Plymouth University. He is the author/editor of nine books and over a hundred articles/chapters. His primary research interest has been around methodological and philosophical issues in social research, particularly objectivity, probability, causality, and representation. His most recent book Key Concepts in the Philosophy of Social Research was published by SAGE in 2017. His past empirical research has included the measurement of homeless populations (using capture-recapture) and the analysis of longitudinal census data to explore household formation/dissolution and counterurbanisation migration. In the last few years, his primary research interest has been in the pedagogy of quantitative methods.