Acknowledgements

The Guidebook was written by Katherine Cowan, Senior Adviser to the James Lind Alliance, and Sandy Oliver, Professor of Public Policy at the Social Science Research Unit and EPPI-Centre, Institute of Education, University of London.

Many thanks to all those who contributed to the process, particularly the Critical Friends Group - Judy Birch, Ivor Cook, Ron Marsh and Dr Douglas Tincello - whose thoughts, advice and guidance were invaluable.