Statistic inference: paired t-test
We compared the results of pretest and e-test 2. As the left box-plots in Fig. Box-plot illustration of the e-test scores. Legend: Data of students’ e-test results regarding scores of the subsections A and B plus total. Data from all 24 students who completed more than 1 e-test is analysed in the paired t-test. In total, 20 points were archievable. In subsections A and B, 10 points were achievable