Research Article
New Indices for Refining Multiple Choice Questions
Table 3
Categorization for the difficulty and discrimination indices.
| Index | Classification | Lower | Upper |
| Difficulty index () | Easy | 0.75 | 1 | Moderate | 0.25 | 0.75 | Difficult | 0 | 0.25 |
| Discrimination index () | High | 0.3 | 1 | Moderate | 0.2 | 0.3 | Low | ā1 | 0.2 |
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