Fig. 2

Box-and-whiskers plot of participants’ formative quiz scores before and after the course. The box represents the Interquartile Range (IQR), from the 25th to the 75th percentile, with the horizontal line inside indicating the median. The whiskers show the range of non-outlier values. Orange indicates pre-course quiz results, green indicates post-course quiz results, and *** shows a p-value < 0.001