Retrospective study assessing student utilization of optional practice questions on pharmacy calculations final examination performance.

Objective: Pharmacists are often the last line of defense from medical errors caused by inaccurate calculations. Effective teaching and assessment of pharmaceutical calculations is essential in preparing students for successful pharmacy careers. This study aimed to elucidate the potential benefit of self-testing practice questions on final examination performance in a first-year pharmaceutical calculations course.

Methods: One-hundred and sixteen students across the class of 2026 and 2027 were given access to 110 online practice calculation questions eight days prior to the final examination. Retrospective analysis using Pearson's Correlation Coefficient and an Unpaired t-test was used to assess the effect of self-study practice questions on exam performance.

Results: A correlation between higher quiz scores and enhanced final examination scores was observed for both the class of 2026 and 2027. A greater number of attempts on practice quiz questions correlated with a higher score on the final examination for the class of 2026, but not the class of 2027. Also, an earlier first access date was associated with higher final examination scores specifically for the class of 2026.

Conclusion: This retrospective study was conducted to evaluate the use of practice calculation questions on final examination performance, and results reveal that the utilization of practice calculation questions positively correlates with improved final examination performance, notably observed in the class of 2026 but not in 2027. These findings suggest the potential efficacy of this preparatory method across various pharmaceutical courses and other calculation-based disciplines internationally.