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Table 1 Summary of pre- and posttest scores of all students (n = 1490) for one session

From: Large-scale application of case-based learning for teaching medical biochemistry: a challenging experience with positive impacts

 

Mean

SD

Minimuma

Maximuma

Pretest

2.24

1.69

0

5

Posttest

4.10

1.18

0

5

Differenceb

1.86

1.53

− 2

5

  1. aA score of 5 in pretest = 210 students, a score of 0 in posttest = 22 students
  2. bPaired Wilcoxon signed ranks test: negative ranks = 13, positive ranks = 1112, ties = 365, P < 0.001. A nonparametric test was used because the data did not show normal distribution as proved by Kolmogorov–Smirnov test
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Innovation and Education

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