What is he known for? Expertise in educational assessment and testing policy. His research focuses on the effects of high-stakes testing, including score inflation, changes to classroom practice, the impact on pupils with special educational needs and international differences in pupil achievement. He is curr...

Where does she work?  Darling-Hammond is currently the Charles E Ducommun professor of education at the Stanford Graduate School of Education, and president and CEO of the Learning Policy Institute. She began her career as a public school teacher in Pennsylvania, and has since gone on to become president of the American Educational Research As...

Where does he work? Stephen Machin is currently a professor of Economics at University College London. He also works at the London School of Economics, where he serves as the director of the Centre for Economic Performance. He gained a PhD from the University of Warwick for his thesis on the impact of trade unions on economic performance. Quick fac...

Intuitively, it seems obvious that reducing the number of pupils in a class will improve the quality of teaching and learning, for example, by increasing the amount of high quality feedback or one-to-one attention learners receive. There is no doubt that parents like small class sizes. However, Professor John Hattie in his book, Visible Learning: a...

A specialist in the economics of education, Eric Hanushek is a Paul and Jean Hanna Senior Fellow at the Hoover Institution, an American public policy think tank at Stanford University. He gained his PhD in economics from Massachusetts Institute of Technology (MIT) in 1968 and now regularly writes for the Wall Street Journal. Quick facts: Nationalit...