Table 1. Mean competency scores, Mann-Whitney U tests, and effect size from the control and interventional groups
Scores Control Group (n=16) Interventional Group (n=16)  
Mean ± SD Mean of Ranks Mean ± SD Mean of Ranks p-value Effect Size (rrb)
Diagnostic Accuracy 58.75% ± 1.77 13.09 85% ± 0.93 19.91 < 0.042* 0.426†
Knowledge Acquisition 46.25% ± 1.19 11.56 76.25% ± 1.11 21.44 < 0.031* 0.617††

* p < 0.05, Mann-Whitney U test

† Rank-biserial correlation 0.4-0.6, moderate effect size

†† Rank-biserial correlation > 0.6, strong effect size

 Int J Med Educ. 2024; 15:37-43; doi: 10.5116/ijme.6607.27a6