Skip to main content

Table 2 Paired analysis in the theoretical and practical pre- and post-tests between case and control groups

From: Learning by teaching basic life support: a non-randomized controlled trial with medical students

Assessment (maximum) Group n Pre-testx±s Post-test
x ± s
p value Difference between post- and pre- p value of the difference
Theoretical test
(20 marks)
Case 34 10,1 ± 3,0 16,4 ± 1,7 < 0,001 a 6,3 ± 2,8 < 0,001 c
Control 35 11,2 ± 2,6 15,0 ± 2,3 < 0,001 a 3,8 ± 2,5
Practical assessment
(17 marks)
Case 50 13,3 ± 2,1 e 15,3 ± 1,2 e < 0,001 b 2,1 ± 2,0 e < 0,001 d
Control 36 14,4 ± 1,6e 14,4 ± 1,4e 0,877b 0,0 ± 1,6e
  1. x ± s– mean ± standard deviation
  2. aPaired Student’s T test
  3. b Wilcoxon signed-rank test
  4. cStudent’s T test
  5. dMann Whitney
  6. e Nonparametric
  7. The first practical assessment was the practical pre-test and the second one was the practical post-test