Krajcik, Joseph S. (michigan State University, Czerniak, Charlene M. (university Of Toledo (1) Macleod, Rebecca (the University Of North Carolina At Greensboro (1) Beach, Richard (university Of Minnesota, Boyd, Ashley S., Webb, Allen (western Michigan University, Thein, Amanda Haertling (university Of Iowa (1) Koh, Myung-sook (1) Bean, Thomas W., Dunkerly-bean, Judithann, Harper, Helen J. (1)