Statistical analysis
REGRESSION
The ages of the participants are presented as the mean ± standard deviation (SD), and other basic information, such as sex and learning experience, was tested with the chi-square test and displayed as frequencies and percentages. The survey responses and the final test scores were skewed, so scores are presented as the median ± interquartile range (IQR), and the Mann‒Whitney U test was applied to compare the survey responses and test scores between the two groups. For the comparison of pre- and post-course survey scores in the same group, the Wilcoxon signed-rank test was applied. To adjust for the confounding factors like age and sex, liner regression analysis was conducted to figure out the association between test scores and the practical course. We set an alpha level of 