_"Where does hunch end and evidence begin? Too much is written and said about school improvement - about improvements in teaching and learning - with far too little attention to this question. This book provides vivid discussion from distinguished protagonists and antagonists about what gets called 'evidence-based practice'. Reading it, all involved in education - policymakers and practitioners alike - can proceed more confidently." - Professor Tim Brighouse, London Schools Commissioner_ The movement to evidence-based practice in education is as important as it is controversial, and this book explores the arguments of leading advocates and critics. The book begins with an explication of evidence-based practice. Some of the ideas of its proponents are discussed, including the Campbell Collaboration, and the application to education of Cochrane-style reviews and meta-analyses. The thinking behind evidence based practice has been the subject of much criticism, particularly in education, and this criticism is aired in the second part of the book. Questions have been raised about what we mean by evidence, about how particular