PI and director of UMass research team:

Clifford Konold, Scientific Reasoning Research Institute, University of Massachusetts

Rolf Biehler, Senior Lecturer and Researcher, Institut für Didaktik der Mathematik, Universität BielefeldHeinz Steinbring, Professor, Institut für Didaktik der Mathematik, Universität Dortmund

University of Massachusetts research team:

Alan Gagnon, Holyoke High School, Holyoke, Massachusetts

Alexander Pollatsek, Professor, Psychology

Arnold Well, Professor, Psychology

Administrative assistant:

Dorothy Freeman, Scientific Reasoning Research Institute, University of Massachusetts