“…The significant advantage of having chosen those tests resides on the fact that both of them allow for a large number of participants, and that they enable statistical analysis. The test's strategy is quite simple and it has already been used in other studies in the area of research in physics teaching, such as Moreira et al, 2009;Borg & Groenen, 2005;Hilger, 2009;Gobara et al, 2002;Greca et al, Rosa et al, 1993;Santos & Moreira, 1991. In the analysis of responses, this research used techniques of multidimensional scaling (Hair et al, 2007;Borg & Groenen, 2005;Cox & Cox, 2001;Santos & Moreira, 1991;Kruskal & Wish, 1978). Using multidimensional scaling, we can generate geometrical representations, such as maps, which reflect the respondent's cognitive structure.…”