Table 2.

Analysis using repeated-measures ANOVA showing differences in p values

Analysis by using repeated measure ANOVA
Training year of residents			Pairwise comparison by Bonferroni correction
	SP vs. VP (P value)	Pre-test vs. Post-test vs. Follow-up Post-test (P value)	Pre-test vs. Post-test (P value)	Pre-test vs. Follow-up Post-test (P value)
1st year	0.848	0.014	0.002	0.041
2nd year	0.231	0.005	0.01	0.016
3rd year	0.171	0.01	0.002	0.031
4th year	0.424	0.001	< 0.00	0.002
All residents	0.896	< 0.00	< 0.00	< 0.00