机译:
Department of Physics, California State University San Marcos, San Marcos, USA;
Western Michigan University, Center for Research on Instructional Change in Postsecondary Education, Kalamazoo, USA;
San Diego State University, Center for Research in Mathematics and Science Education, San Diego, USA;
Department of Physics, University of Maryland, College Park, USA;
Horizon Research, Inc., Chapel Hill, USA;
Department of Physics, University of Colorado, Boulder, USA;
Department of Physics, Tennessee Technological University, Cookeville, USA;