Fig. 2

Comparison of students’ assessment of the concept of virtual inverted classroom with a historical control that assessed the concept of physical inverted classroom in the year preceding the pandemic. Box plots indicate median and interquartile range. Whiskers end with the lowest and highest data point within 1.5 × interquartile range. Means are represented as dots. P-value cut-off is set at 0.005 to correct for multiple testing. ARS: audience response system, IQR: interquartile range