Daniel Muijs is Head of the School of Social Sciences, Education and Social Work and Professor of Education at Queen’s University Belfast. He is an acknowledged expert in the fields of educational and teacher effectiveness, school improvement and research methods and has published widely in these areas. He is co-editor of the journal ‘School Effectiveness and School Improvement’, and has held key advisory posts in a range of academic and professional organisations. He previously held professorial and leadership positions at universities in England and the Netherlands, and was Director of Research and Evaluation at Ofsted.