E. Sayre and M. Wittmann,
Phys. Rev. ST Phys. Educ. Res., **4** (2), 020105 (2008).

We investigate the interplay between mathematics and physics resources in intermediate mechanics students. In the mechanics course, the selection and application of coordinate…

L. Ding and R. Beichner,
Phys. Rev. ST Phys. Educ. Res., **5** (2), 020103 (2009).

This paper introduces five commonly used approaches to analyzing multiple-choice test data. They are classical test theory, factor analysis, cluster analysis, item response theory,…