Elizabeth Washbrook is a Lecturer in Quantitative Methods for Education and a member of the Centre for Multilevel Modelling at the University of Bristol, and an Associate of the Columbia Population Research Center. Since earning her Ph.D., she has been a Leverhulme Early Career Fellow, a Post-doctoral Scholar at Columbia University and a Visiting Scholar at the VU University, Amsterdam. Her interests include the relationships between family background, policy and early childhood outcomes and methodological issues in the analysis of longitudinal data.

Rand Conger is a Distinguished Professor of Psychology, Human Development, and Family Studies at the University of California Davis. Conger has been a faculty member at the University of Georgia, the University of Illinois at Urbana/Champaign, and Iowa State University. He has held several administrative posts, most notably as the founding Director for the Institute for Social and Behavioral Research at Iowa State University.