Table 5 Mean number of functioning distractors of MCQs in the undergraduate medical qualification exam at DTU, 2021
Item characteristics | Category | Number of items | Mean # FDs | Std.dev | p-value |
|---|---|---|---|---|---|
Difficulty index | Hard (0–0.29) | 21 | 2.33 | 0.80 |  < 0.0001 |
Desirable (0.3–0.7) | 51 | 2.35 | 0.70 | ||
Moderate easy (0.71–0.79) | 19 | 1.68 | 0.67 | ||
Easy (≥ 0.80) | 29 | 0.52 | 0.69 | ||
Discrimination index | Negative (< 0) | 37 | 2.02 | 1.04 | 0.3887 |
Poor (0–0.19) | 54 | 1.72 | 0.98 | ||
Acceptable (0.2–0.29) | 16 | 2.0 | 1.10 | ||
Good (0.3–0.39) | 10 | 1.6 | 0.63 |