Performance of at-risk students in dynamics following a statics class with additional recitation time

Abstract

Comparisons are made between the final exam and final course grades of at-risk students in dynamics who took one of two versions of the same statics course. A standard version of the statics course met 3 hours per week over the course of a 15-week semester, while a second version met 4 hours per week. During the 11-year timeframe covered by this study, the 4-hour statics course was populated by students identified as ‘at risk’ using an informal screening procedure. For comparison with this group, using the same enrollment data, a second group of at-risk students was identified from the 3-hour statics class using a more formal screening procedure, based on logistic regression. A performance comparison of the two groups shows that the extra contact hour had a minor, statistically insignificant effect on student final exam and final course grades in dynamics. As a result of this study and a related study examining the effect of additional class time on statics performance, the 4-hour statics class is no longer offered.

Keywords

Statics mechanics at-risk students student performance

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