| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 1138 |
23.2%
|
| 1.0 | Correct | 3304 |
67.5%
|
| i | Invalid | 54 |
1.1%
|
| u | Unanswered | 400 |
8.2%
|
| Sysmiss | 3 |