Kurt VanLehn, University of Pittsburgh, stephanie siler, Carnegie Mellon University

Agneta Gulz, Lund University Cognitive Science, Magnus Haake, Lund University

Li Zhang, University of Teesside, Marco Gillies, University College London, Kulwant Dhaliwal, Hi8us Midlands Ltd., Amanda Gower, BT Innovate, Dale Robertson, BT Innovate, Barry Crabtree, BT Innovate

Paul Brna, University of Edinburgh

Antonija Mitrovic, University of Canterbury, Kenneth Koedinger, Carnegie Mellon University

Vincent Aleven, Carnegie Mellon University, Bruce McLaren, Carnegie Mellon University, Jonathan Sewall, Carnegie Mellon University, Kenneth Koedinger, Carnegie Mellon University

Antonija Mitrovic, University of Canterbury, Brent Martin, University of Canterbury, Pramuditha Suraweera, University of Canterbury, Konstantin Zakharov, University of Canterbury, Nancy Milik, University of Canterbury, Jay Holland, University of Canterbury, Nicholas McGuigan, Lincoln University

Stephen B Blessing, University of Florida, Stephen Gilbert, Iowa State University, Stephen Ourada, Clearsighted, Inc., Steven Ritter, Carnegie Learning, Inc.

Yusuke Hayashi, Osaka University, Jacqueline Bourdeau, Universite du Quebec a Chicoutimi, Riichiro Mizoguchi, ISIR, Osaka University

Francoise Le Calvez, University Pierre et Marie Curie (Paris 6), LIP6-MOCAH, Helene Giroire, University Pierre et Marie Curie (Paris 6), LIP6-MOCAH, Gerard Tisseau, University Pierre et Marie Curie (Paris 6), LIP6-MOCAH

Tangming Yuan, University of Akureyri, David Moore, Leeds Metropolitan University, Alec Grierson, Leeds Metropolitan University

Leen-Kiat Soh, University of Nebraska, Todd Blank, University of Nebraska

Devshri Roy, Computer Science & Engineering Department, Indian Institute of Technology, Sudeshna Sarkar, Computer Science & Engineering Department, Indian Institute of Technology, Sujoy Ghose, Indian Institute of Technology

Neil T Heffernan, Worcester Polytechnic Institute, Leena Razzaq, Worcester Polytechnic Institute, Kenneth Koedinger, Carnegie Mellon University

Leen-Kiat Soh, University of Nebraska, Nobel Khandaker, University of Nebraska, Hong Jiang, University of Nebraska

Leelawong Krittaya, Vanderbilt University, Biswas Gautam, Vanderbilt University

Kazuaki Kojima, Waseda University, Kazuhisa Miwa, Nagoya University

Chao-Lin Liu, National Chengchi University

Valerie Shute, Florida State University, Eric Hansen, Educational Testing Service, Russell Almond, Educational Testing Service

Rosa Vicari, Federal University of Rio Grande do Sul, Cecilia Dias Flores, Department of Collective Medicine, Louise Seixas, Federal University of Rio Grande do Sul, Pharmacy School, João Carlos Gluz, Post-Graduation Program in Applied Computer Science, Helder Coelho, Department of Informatics, University of Lisbon

Barbara Di Eugenio,, University of Illinois, Davide Fossati,, University of Illinois, Susan Haller, Department of Computer Science, SUNY Potsdam,, Dan Yu,, Albert A. Webb Associates,, Michael Glass,, Valparaiso University,

Rosa Lanzilotti, Department of Computer Science, University of Bari, Teresa Roselli, Department of Computer Science, University of Bari

Vasco Furtado, University of Fortaleza, Master's Program in Applied Informatics, Eurico Vasconcelos, University of Fortaleza, Master's Program in Applied Informatics

Robert Aiken, CIS Department Temple University, Judith Israel, Widener University

Jacqueline Bourdeau, Universite du Quebec a Chicoutimi, Josephine Tchetagni, Universite du Quebec à Montreal, Roger Nkambou, Universite du Quebec à Montreal

Susan Bull, University of Birmingham, Judy Kay, University of Sydney

Vania Dimitrova, Leeds University

Antonija Mitrovic, University of Canterbury, Brent Martin, University of Canterbury

Gordon McCalla, Department of Computer Science, University of Saskatchewan, Susan Bull, University of Birmingham, Vania Dimitrova, Leeds University

Paul Brna, University of Edinburgh, Nicolas Van Labeke, University of Glasgow, Rafael Morales, Universidad de Guadalajara

Susan Bull, University of Birmingham, Andrew Mabbott, University of Birmingham, Abdallatif S. Abu Issa, University of Birmingham

Fotis Lazarinis, University of Piraeus, Symeon Retalis, University of Piraeus

Gordon McCalla, Department of Computer Science, University of Saskatchewan, Susan Bull, University of Birmingham, Vania Dimitrova, Leeds University

Juan-Diego Zapata-Rivera, University of Saskatchewan, Valerie Shute, Florida State University, Eric Hansen, Educational Testing Service, Russell Almond, Educational Testing Service, Roger Azevedo, Carnegie Mellon University, Department of Psychology, Malcolm Bauer, Educational Testing Service

Chris Mellish, University of Aberdeen, Anita Ferreira, Universidad de Concepción, Johanna D. Moore, University of Edinburgh

Yanghee Kim, Utah State University

Kenneth Koedinger, Carnegie Mellon University, Ryan Baker, University of Nottingham, Albert Corbett, Carnegie Mellon University

Wolfgang Menzel, Universität Hamburg,

Lisa Michaud, Wheaton College, Kathleen McCoy, University of Delaware

Sidney K. D'Mello, University of Memphis, Scotty D. Craig, University of Pittsburgh, Arthur C. Graesser, University of Memphis, Jeremiah Sullins, University of Memphis

Heather Pon-Barry, Stanford University, Karl Schultz, Stanford University, Elizabeth Owen Bratt, Stanford University, Brady Clark, Stanford University, Stanley Peters, Stanford University

Carolyn P. Rose, Carnegie Mellon University, Rohit Kumar, Carnegie Mellon University, Vincent Aleven, Carnegie Mellon University, Allen Robinson, Carnegie Mellon University, Chih Wu, US Naval Academy

Joseph Beck, Carnegie Mellon University, June Sison, Carnegie Mellon University

Kurt VanLehn, University of Pittsburgh, Carolyn Rose, Carnegie Mellon University, Diane Litman, University of Pittsburgh, Kate Forbes-Riley, University of Pittsburgh, Dumisizwe Bhembe, University of Pittsburgh, Scott Silliman, University of Pittsburgh

Ido Roll, Carnegie Mellon University, Kenneth Koedinger, Carnegie Mellon University, Vincent Aleven, Carnegie Mellon University, Bruce McLaren, Carnegie Mellon University

Viswanathan Kodaganallur, Seton Hall University, David Rosenthal, Seton Hall University, Rob R. Weitz, Seton Hall University,

Antonija Mitrovic, University of Canterbury, Stellan Ohlsson, University of Illinois at Chicago

Benedict du Boulay, University of Sussex

Kurt VanLehn, University of Pittsburgh

Paul Brna, University of Edinburgh

James Lester, North Carolina State University

Judy Robertson, Department of Artificial Intelligence, University of Edinburgh, Judith Good, Department of Artificial Intelligence, University of Edinburgh, Seth Goolnik, University of Edinburgh

Judy Robertson, Department of Artificial Intelligence, University of Edinburgh, Judith Good, Department of Artificial Intelligence, University of Edinburgh

Lynne Hall, University of Sunderland, Sarah Woods, University of Hertfordshire, Ruth Aylett, Heriot-Watt University

Rosemary Luckin, University of Sussex, Judy Robertson, Department of Artificial Intelligence, University of Edinburgh

Benedict du Boulay, University of Sussex, Rosemary Luckin, University of Sussex, Joshua Underwood, University of Sussex, Joe Holmberg, University of Sussex, Lucinda Kerawalla, University of Sussex, Jeanette O'Connor, University of Sussex, Hilary Smith, University of Sussex, Hilary Tunley, University of Sussex

Syed Mustapha, University of Malaya, S. M. Zain, University of Malaya

Kurt VanLehn, University of Pittsburgh, Carolyn Rose, Carnegie Mellon University

Michel Desmarais, École Polytechnique de Montrèal, Xiaoming Pu, École Polytechnique de Montrèal

Vladan Devedzic, University of Belgrade, Andreas Harrer, Universitat Duisburg-Essen

Aurora Vizcaíno, Paseo de la Universidad

Yanghee Kim, Utah State University, Amy L. Baylor, Florida State University

Kalina Yacef, University of Sydney

Joel A. Shapiro, University of Pittsburgh

Viswanathan Kodaganallur, Seton Hall University, David Rosenthal, Seton Hall University, Rob R. Weitz, Seton Hall University,

Amy Soller, Institute for Defense Analyses, Alejandra Martínez,, Department of Computer Science, University of Valladolid, Valladolid,, Patrick Jermann,, Ecole Polytechnique Federale de Lausanne (EPFL),Lausanne,, Martin Muehlenbrock, DFKI, German Research Center for Artificial Intelligence

Kurt VanLehn, University of Pittsburgh, Colin Lynch, University of Pittsburgh, Kay Schulze, US Naval Academy, Joel A. Shapiro, University of Pittsburgh, Robert Shelby, US Naval Academy, Linwood Taylor, University of Pittsburgh, Don Treacy, US Naval Academy, Anders Weinstein, University of Pittsburgh, Mary Wintersgill, US Naval Academy

Marta C. Rosatelli, Universidade Católica de Santos, John A. Self, University of Leeds,

Jim Reye, Queensland University of Technology

Ricardo Conejo, Campus de Teatinos, Eduardo Guzmán, Campus de Teatinos, Eva Millán, Campus de Teatinos, Monica Trella, Campus de Teatinos, Jose Luis Perez-De- La-Cruz, Campus de Teatinos, Antonia Rios, Campus de Teatinos

Andrew Walker, College of Education, Lehigh University,, Mimi Recker, Department of Instructional Technology, Utah State University,, Kimberly Lawless, Department of Education, University of Illinois, Chicago, David Wiley, Department of Instructional Technology, Utah State University,

Juan-Diego Zapata-Rivera, University of Saskatchewan, Jim Greer, University of Saskatchewan

Vladan Devedzic, University of Belgrade

Jorge Uresti, Deparment of Computer Science, ITESM-CEM, Benedict du Boulay, University of Sussex

Agneta Gulz, Lund University Cognitive Science

Shaaron Ainsworth, University of Nottingham, Shirley Grimshaw, University of Nottingham

Pramuditha Suraweera, University of Canterbury, Antonija Mitrovic, University of Canterbury

R. Charles Murray, University of Pittsburgh, Kurt VanLehn, University of Pittsburgh, Jack Mostow, Carnegie Mellon University

Judy Robertson, Department of Artificial Intelligence, University of Edinburgh, Beth Cross, University of Edinburgh, Hamish Macleod, University of Edinburgh, Peter Wiemer-Hastings, University of Edinburgh

Peter Wiemer-Hastings, University of Edinburgh, M. Anne Britt, Northern Illinois University, Aaron A. Larson, Northern Illinois University, Charles A. Perfetti, University of Pittsburgh

Jim Greer, University of Saskatchewan, Gordon McCalla, Department of Computer Science, University of Saskatchewan, Susan Bull, University of Birmingham

Bridget Cooper, School of Education, University of Leeds,

Patricia Tedesco, Cidade Universitária

Vania Dimitrova, Leeds University

Sandra Katz, University of Pittsburgh, David Allbritton, DePaul University, John Connelly, DePaul University

Gordon McCalla, Department of Computer Science, University of Saskatchewan, Judy Kay, University of Sydney

Pierre Dillenbourg, Swiss Federal Institute of Technology

Peter Brusilovsky, School of Information Sciences, University of Pittsburgh, Christoph Peylo, Software Logistik im Artland, Friedrichstr

Tom Murray, Hampshire College School of Cognitive Science

A. SERENGUL GUVEN SMITH, School of Computing Science, Middlesex University, ANN BLANDFORD, UCL Interaction Centre, University College London

Antonija Mitrovic, University of Canterbury

John Cook, University of North London

Rosemary Luckin, University of Sussex, Lydia Plowman, Scottish Council for Research in Education,, Matthew Stratfold, Open University, Milton Keynes, Josie Taylor, Open University, Milton Keynes, Sara Corben, University of Sussex, Diana Laurillar, Open University

Amy Soller, Institute for Defense Analyses, Abdallatif S. Abu Issa, University of Birmingham

Rachel Pilkington, Computer Based Learning Unit, University of Leeds

Liam Rourke, University of Alberta, Terry Anderson, University of Alberta, D. R. Garrison, University of Alberta, Walter Archer, University of Alberta

Rachel Pilkington, Computer Based Learning Unit, University of Leeds, Cornelia Kneser, University of Basel, Tamsin Treasure-Jones, University of Leeds

Natalie Person, Rhodes College, Arthur C. Graesser, University of Memphis, ROGER J. KREUZ, University of Memphis, Memphis, TN, VICTORIA POMEROY, University of Memphis, Memphis, TN

Kurt VanLehn, University of Pittsburgh, Zhendong Niu, Carnegie-Mellon University

Maria Virvou, University of Piraeus, Maria Moundridou, University of Piraeus

GREGORY AIST, Carnegie Mellon University

Antonija Mitrovic, University of Canterbury, Michael Mayo, University of Canterbury

Benedict du Boulay, University of Sussex, Rosemary Luckin, University of Sussex

Natalie Person, Rhodes College, Derek Harter, University of Memphis, Arthur C. Graesser, University of Memphis

David Wood, University of Nottingham

Benedict du Boulay, University of Sussex, Rosemary Luckin, University of Sussex

Susanne Lajoie, McGill University, Applied Cognitive Science Research Group, Sonia Faremo, McGill University, Jeffery Wiseman, McGill University

Nicola Henze, University of Hannover, Wolfgang Nejdl, University of Hannover

Peter Brusilovsky, School of Information Sciences, University of Pittsburgh, Gerhard Weber, University of Education Freiburg

Trude Heift, Simon Fraser University, Devlan Nicholson, Simon Fraser University

Eric Melis, DFKI Saarbrucken, Eric Andres, DFKI Saarbrucken, Jochen Budenbender, DFKI Saarbrucken, Adrian Frischauf, DFKI Saarbrucken, George Goduadze, DFKI Saarbrucken, Paul Libbrecht, DFKI Saarbrucken, Martin Pollet, DFKI Saarbrucken, Carsten Ullrich, DFKI Saarbrucken

Lewis Johnson, Center for Advanced Research in Technology for Education(CARTE), Jeff Rickel, Center for Advanced Research in Technology for Education(CARTE), James Lester, North Carolina State University

Wen-Cheng Wang, Department of Computer Science, National Central University, Tak-Wai Chan, National Central University

Hiroaki Ogata, Tokushima University, Yoneo Yano, Tokushima University

Rachel Pilkington, Computer Based Learning Unit, University of Leeds, Mark Burton, Leeds University, Paul Brna, University of Edinburgh

Michael Baker, GRIC-COAST, CNRS & Universite Lumière Lyon

Allan Collins, Northwestern University, Boston College, Peter Neville, Bricolage Interactive Design, Katerine Bielaczyc, Boston College

Gordon McCalla, Department of Computer Science, University of Saskatchewan

Vladimir A Fomichov, Technical University, Moscow, Olga S Fomichova, Moscow Children and Teenagers Palace for Creative Work, Kossygin, Moscow

Riichiro Mizoguchi, ISIR, Osaka University, Jacqueline Bourdeau, Universite du Quebec a Chicoutimi

Richard G Epstein, West Chester University, Robert Aiken, CIS Department Temple University

Geoff Cumming, School of Psychological Science, La Trobe University, Anne McDougall, Faculty of Education, University of Melbourne

Duska Rosenberg, Management School, Royal Holloway, University of London, John Sillince, Management School, Royal Holloway, University of London

Beatriz Barros, Escuela Tecnica Superior de Ingenieros Industriales, M. FelisaVerdejo, Escuela Tecnica Superior de Ingenieros Industriales

Kaska Porayska-Pomsta, University of Edinburgh, Division of Informatics, ICCS, Chris Mellish, University of Aberdeen, Helen Pain, University of Edinburgh, Division of Informatics, ICCS

Sandra Katz, University of Pittsburgh, Gabriel O'Donnell, University of Pittsburgh, Heather Kay, University of Pittsburgh

Andrew Ravenscroft, Institute of Educational Technology, The Open University, Rachel Pilkington, Computer Based Learning Unit, University of Leeds

Mathew Ventura, The University of Memphis, Barry Gholson, The University of Memphis, Scotty D. Craig, University of Pittsburgh, Arthur C. Graesser, University of Memphis

Bruce Roberts, BBN Technologies, Nicholas Pioch, BBN Technologies, William Ferguson, BBN Technologies

Fabio N. Akhras, Renato Archer Center of Information Technology, John A. Self, University of Leeds,

Jon Elorriaga, University of the Basque Country, Isabel Fernandez-Castro, University of the Basque Country

Cristina Conati, University of British Columbia, Kurt VanLehn, University of Pittsburgh

Benjamin Bell, Center for Intelligent Tools in Education, Teachers College, Columbia University

Patricia Hsieh, Mei Technology Corporation, Henry Halff, Mei Technology Corporation, Carol Redfield,, Mei Technology Corporation

Tom Murray, Hampshire College School of Cognitive Science

Randall Sparks, U S WEST Advanced Technologies, Scott Dooley, U S WEST Advanced Technologies, Lori Meiskey, U S WEST Advanced Technologies, Rick Blumenthal, U S WEST Advanced Technologies

Jerry Andriessen, Dept. of Educational Sciences, Utrecht University, Jacobijn Sandberg, Dept. of Social Science Informatics, University of Amsterdam

Benedict du Boulay, University of Sussex, Rosemary Luckin, University of Sussex

Barbara Y. White, University of California at Berkeley, Todd A. Shimoda, University of California at Berkeley, John R. Frederiksen, University of California at Berkeley

Sherman Alpert, IBM T.J. Watson Research Center, Mark Singley, IBM T.J. Watson Research Center, Peter Fairweather, IBM T.J. Watson Research Center

Gheorghe Tecuci, George Mason University, Harry Keeling, Howard University

Monique Grandbastien, Universite Henri Poincare Nancy1, Campus Scientifique

Wouter van Joolingen, Graduate School of Teaching and Learning, University of Amsterdam

James Lester, North Carolina State University, Stuart Towns, North Carolina State University, Patrick Fitzgerald, North Carolina State University

Wayne Zachary, CHI Systems, Inc, J. Cannon Bowers, Naval Air Warfare Center-Training Systems Division, J. Burns, Sonalysts, Inc.,

John A. Self, University of Leeds,

Lisa Torreano, GKI, Inc., Ross Willis, GKI, Inc., Valerie Shute, Florida State University

DANIEL SUTHERS, University of Hawai'i at Manoa, Kenneth Koedinger, Carnegie Mellon University, Kenneth Forbus, Northwestern University

Antonija Mitrovic, University of Canterbury, Stellan Ohlsson, University of Illinois at Chicago

Brant Cheikes, The MITRE Corporation, Marty Geier, The MITRE Corporation, Rob Hyland, The MITRE Corporation, Frank Linton, The MITRE Corporation, Annette Riffe, The MITRE Corporation, Linda Rodi, The MITRE Corporation, Hans-Peter Schaefer, The MITRE Corporation

Raymund Sison, Tokyo Institute of Technology, Masamichi Shimura, Science University of Tokyo

Tsukasa Hirashima, Kyushu Institute of Technology, Tomoya Horiguchi, Kobe University of Mercantile Marine, Akihiro Kashihara, Osaka University, Jun'ichi Toyoda, Osaka University

Mimi Recker, Department of Instructional Technology, Utah State University,, Terry Shikano, Georgia Institute of Technology, Ashwin Ram, Georgia Institute of Technology

L.H Wong, Nanyang Technological University, C. Quek, Nanyang Technological University, C.K. Looi, Nanyang Technological University

Luigi Colazzo, University of Trento, Marco Costantino, University of Durham

Roger Azevedo, Carnegie Mellon University, Department of Psychology, Susanne Lajoie, McGill University, Applied Cognitive Science Research Group

John Cook, University of North London

Helen Pain, University of Edinburgh, Division of Informatics, ICCS, Judy Robertson, Department of Artificial Intelligence, University of Edinburgh, Judith Good, Department of Artificial Intelligence, University of Edinburgh

Jim Greer, University of Saskatchewan, Gordon McCalla, Department of Computer Science, University of Saskatchewan, J Collins, University of Saskatchewan, V Kumar, University of Saskatchewan, P Meagher, University of Saskatchewan, J Vassileva, University of Saskatchewan

Amy Soller, Institute for Defense Analyses, Bradley Goodman, The MITRE Corporation, Frank Linton, The MITRE Corporation, Robert Gaimari, The MITRE Corporation

Rolf Ploetzner, University of Freiburg, Eric Fehse, University of Freiburg

Pentti Hietala, University of Tampere, Timo Niemirepo, University of Tampere

Martin Muehlenbrock, DFKI, German Research Center for Artificial Intelligence, F. Tewissen, University of Duisburg, COLLIDE Research Group, Dept. of Math./Computer Science,, H.U. Hoppe, University of Duisburg, COLLIDE Research Group, Dept. of Math./Computer Science,

Barbara Wasson, University of Bergen

Tak-Wai Chan, National Central University, Wing-Kwong Wong, Dept. of Electronic Eng., National Yunlin Institute of Tech.,

ALEXANDRE DIRENE, University of Sussex,

Tak-Wai Chan, National Central University, Chih-Yueh Chou, Institute of Computer Science and Information Engineering

Kenneth Koedinger, Carnegie Mellon University, John Anderson, Carnegie Mellon University, William Hadley, Carnegie Mellon University, Mary Mark, Carnegie Mellon University

Thad Crews, Western Kentucky University, Gautam Biswas, Vanderbilt University, Susan Goldman, Vanderbilt University, John Bransford, Vanderbilt University

Geoffrey Webb, Deakin University, Bark Cheung Chiu, Deakin University, Mark Kuzmycz, Deakin University

Joseph Mertz, Jr., Carnegie Mellon University

Kurt VanLehn, University of Pittsburgh, Joel Martin, National Research Council of Canada

David Wood, University of Nottingham, Nigel Major, University of Nottingham, Shaaron Ainsworth, University of Nottingham

Douglas M Towne, University of Southern California

Stephen B Blessing, University of Florida

Tom Murray, Hampshire College School of Cognitive Science

Allen Munro, University of Southern California, Mark C. Johnson,, University of Southern California, Quentin A. Pizzini, University of Southern California, David S. Surmon, University of Southern California, Douglas M. Towne, University of Southern California, James L. Wogulis, University of Southern California

Jim Greer, University of Saskatchewan, Isabel Fernandez-Castro, University of the Basque Country, Ana Arruarte, University of the Basque Country UPV/EHU, Begona Ferrero, University of the Basque Country UPV/EHU

Gerhard Weber, University of Education Freiburg

P. Baffes, , R. Mooney,

P. C-H Cheng,

Tak-Wai Chan, National Central University

Johanna D. Moore, University of Edinburgh

Pierre Dillenbourg, Swiss Federal Institute of Technology

Kenneth Koedinger, Carnegie Mellon University, Steven Ritter, Carnegie Learning, Inc.

Wouter van Joolingen, Graduate School of Teaching and Learning, University of Amsterdam, T. De Jong,

G. Paquette, , F. Pachet, , S. Giroux, , J. Girard,

R. Mooney, , T. Conlon,

Jim Greer, University of Saskatchewan, Isabel Fernandez-Castro, University of the Basque Country, Ana Arruarte, University of the Basque Country UPV/EHU

G Kearsley,