Table 18 Test-three analysis (number of students attempts = 89)
From: Evaluating the quality of the ontology-based auto-generated questions
Test statistics | Value | Description | Desired values |
|---|---|---|---|
Questions difficulty index average | 0.564 | Medium difficulty | [0.3-0.9] |
Questions discrimination index average | 0.484 | Satisfactory | ≥0.3 |
Questions reliability average (point biserial coefficient) | 0.399 | Satisfactory | ≥0.2 |
Test reliability index | 0.604 | Acceptable | ≥0.7 |
Test discrimination power (Ferguson’s delta) | 0.966 | Satisfactory | ≥0.9 |