Table 20 Questions’ difficulty and discrimination indices using IRT (test-two)
From: Evaluating the quality of the ontology-based auto-generated questions
Question | Difficulty index | Discrimination index |
|---|---|---|
1 | Easy (-1.81) | Very low (0.18) |
2 | Very easy (-2.23) | Low (0.49) |
3 | Easy (-0.99) | Very low (0.19) |
4 | Very easy (-10.33) | Very low (0.11) |
5 | Difficult (0.66) | Low (0.43) |
6 | Medium (0.42) | Moderate (0.89) |
7 | Very easy (-8.44) | Very low (0.05) |
8 | Difficult (1.16) | Moderate (0.86) |
9 | Medium (0.28) | Moderate (1.22) |
10 | Medium (-0.29) | Very low (0.32) |
11 | Difficult (1.87) | Low (0.52) |
12 | Easy (-1.66) | Moderate (0.84) |
13 | Medium (0.02) | Perfect (2.75) |
14 | Easy (-1.5) | Low (0.35) |
15 | Easy (-0.98) | Low (0.63) |
16 | Medium (-0.01) | High (1.48) |