“…Concept mapping is used for several purposes including determining students' alternative conceptions (Zoller 1990, Ross and Munby 1991, Abrams and Wandersee 1992, Roberts 1999, examining changes in cognitive structure (Novak and Wandersee 1990, Wallace and Mintzes 1990, Novak and Musonda 1991 Downloaded by [York University Libraries] at 18:50 19 November 2014 and Wandersee 1994), and for assessment and evaluation purposes (Moreira 1985, Barenholz and Tamir 1992, Gaffney 1992, Roth 1992, Holmes and Leitzel 1993, Markham et al 1994, Laffey and Singer 1997, Rice et al 1998, Edmondson 2000, Stoddart et al 2000.…”