William H. Schmidt is a University Distinguished Professor of statistics and education at Michigan State University. He serves as director of the Education Policy Center and holds faculty appointments in Statistics and Education. Previously he served as National Research Coordinator and Executive Director of the US National Center which oversaw participation of the United States in the IEA sponsored Third International Mathematics and Science Study (TIMSS). He has co-authored ten books including Why Schools Matter, Teacher Education Matters, and Inequality for All. His current writing and research concerns issues of academic content in K-12 schooling including the Common Core State Standards for Mathematics, assessment theory and the effects of curriculum on academic achievement. He is also concerned with educational policy related to mathematics, science and testing in general.