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Abstract Title: Test of Understanding of Vectors (TUV): Classification of the most frequent incorrect answers
Abstract: In a previous article [1] we showed that the 20-item multiple choice Test of Understanding of Vectors (TUV) is a reliable assessment tool. In this work we present a classification of the most frequent incorrect answers for each of the items of the TUV. We administered the test to 423 students who were completing the required sequence of introductory physics courses at a large private Mexican university. First we analyzed the overall performance of the students and cluster the items according to level of difficulty. We then developed the classification categorizing the items in four groups by type of difficulty: (1) graphical properties, (2) graphical procedures, (3) geometric calculation procedures, and (4) unit vector notation calculation procedures. These analyses provide a general description of the difficulties that university students have when applying vector concepts and could guide the design of new instructional material intended to increase students' understanding.

References
[1] P. Barniol and G. Zavala, Testing Students' Understanding of Vector Concepts presented at the Physics Education Research Conference 2013, Portland, OR, 2013.
Abstract Type: Contributed Poster Presentation

Author/Organizer Information

Primary Contact: Pablo Barniol
Tecnologico de Monterrey
E. Garza Sada 2501
Monterrey, Non U.S. 64849
Phone: 8183582000
Co-Author(s)
and Co-Presenter(s)
Genaro Zavala