Table 21 Questions’ difficulty and discrimination indices using IRT (test-three)
From: Evaluating the quality of the ontology-based auto-generated questions
Question | Difficulty index | Discrimination index |
|---|---|---|
1 | Very easy (-2.51) | Low (0.37) |
2 | Very easy (-3.32) | Very low (0.19) |
3 | Very easy (-2.06) | Low (0.62) |
4 | Easy (-1.51) | Low (0.42) |
5 | Easy (-0.76) | Moderate (1.17) |
6 | Medium (0.09) | Moderate (0.70) |
7 | Difficult (0.88) | Moderate (0.87) |
8 | Medium (0.31) | Moderate (1.08) |
9 | Easy (-1.48) | Moderate (1.17) |
10 | Easy (-0.99) | Moderate (0.86) |
11 | Very difficult (6.10) | Very low (0.18) |
12 | Difficult (0.60) | Moderate (1.18) |
13 | Medium (0.38) | Moderate (1.04) |
14 | Easy (-1.05) | Moderate (1.32) |