| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 3158 |
64.5%
|
| 1.0 | Correct | 356 |
7.3%
|
| i | Invalid | 381 |
7.8%
|
| u | Unanswered | 1001 |
20.4%
|
| Sysmiss | 3 |