I would like to thank the members of the AAAS staff who contributed to making this book possible. Kathryn Wolff provided support for the proposal and continued to help in many ways in its production. Sue O'Connell was proficient, patient, and creative in editing and preparing the manuscript for production. Susan Cherry and Elisabeth Carroll prepared figures and did final production work; Joan Levy designed the cover. Finally, I am especially grateful to Danita Wilkinson who tracked manuscripts, did all of the computer entry work, and helped produce the index. While I am responsible for the final content, the book is a reality because of these dedicated people.
Cover art modified from Mark Wilson, "Investigating Structured Problem-Solving Items," this volume.
The views presented in this publication are those of the authors and do not necessarily represent those of the Board of Directors or the membership of the American Association for the Advancement of Science.