Table 3 Psychometric quality of MCQs utilized in undergraduate medical qualification exam, DTU, 2021
Item characteristics | Four option (n = 73) | Five option (n = 47) | Total (N = 120) | p | |
|---|---|---|---|---|---|
Difficulty level, n(%) | Difficult | 10 (13.7) | 11 (23.4) | 22(18.3) | 0.705 |
Desirable | 34 (46.6) | 17 (36.2) | 51(42.5) | ||
Moderately easy | 12 (16.4) | 7 (14.9) | 18(15.0) | ||
Easy | 17 (23.3) | 12 (25.5) | 29(24.2) | ||
Item discrimination, n(%) | Negative | 23 (32.9) | 14 (29.8) | 37(31.6) | 0.567 |
Poor | 34 (48.6) | 20 (42.6) | 54(46.2) | ||
Acceptable | 7 (10.0) | 9 (19.2) | 16(13.7) | ||
Good | 6 (8.6) | 4 (8.5) | 10(8.6) | ||
Number of functioning distractors per item | High | 18(24.7%) | 1(2.1%) | 19 (15.8%) | 0.666 |
Moderate | 31 (42.5%) | 30(63.8%) | 61 (50.8%) | ||
Low | 24 (32.9%) | 16(34.0%) | 40 (33.3%) | ||
Difficulty, mean (95%CI) | 0.59 (0.53,0.63) | 0.57(0.49,0.65) | 0.58(0.53,0.63) | 0.543 | |
Discrimination, mean (95%CI)) | 0.07(0.03,0.11) | 0.09(0.04,0.14) | 0.08(0.05,0.11) | 0.739 | |
Total # distractors | 219 | 188 | 407 | Â | |
Total # FDs | 129 (58.9) | 87 (46.3) | 216(53.1%) | Â | |
FDs/item, mean (95%CI) | 1.8(1.5, 2.0) | 1.9(1.5, 2.2) | 1.8(1.61,1.99) | 0.829 | |