My research examines trends and patterns of educational inequality, both internationally and over time. Specifically, I am interested in socio-economic disparities in academic achievement, school segregation, curricular streaming/tracking/ability grouping and university access, as well as the consequences of childhood inequality for adult skills, educational attainment and income. I use a sociological lens and quantitative methods, including multilevel modelling and methods for measuring segregation and achievement gaps. Much of my research draws on data from international large-scale assessments, such as the Programme for International Student Assessment (PISA), the Trends in International Mathematics and Science Study (TIMSS) and the Programme for the International Assessment of Adult Competencies (PIAAC). I am also participating faculty in the collaborative programs in Comparative, International & Development Education (CIDE) and Educational Policy (CEPP).