Visualizing changes in student responses using consistency plots

Details Visualizing changes in student responses using consistency plots Visualizing changes in student responses using consistency plots

2008-12-16

arxiv.org/abs/0812.3136v1

Physics

Physics Education

10 pages, 11 figures, to be submitted to Physical Review Special Topics - Physics Education Research

Scientific paper

Traditional methods of reporting changes in student responses have focused on class-wide averages. Such models hide information about the switches in responses by individual students over the course of a semester. We extend unpublished work by Steven Kanim on "escalator diagrams" which show changes in student responses from correct to incorrect (and vice versa) while representing pre- and post-instruction results on questions. Our extension consists of "consistency plots" in which we represent three forms of data: method of solution and correctness of solution both before and after instruction. Our data are from an intermediate mechanics class, and come from (nearly) identical midterm and final examination questions.

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