| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 1071 |
21.9%
|
| 1.0 | Correct | 1905 |
38.9%
|
| i | Invalid | 722 |
14.7%
|
| u | Unanswered | 1198 |
24.5%
|
| Sysmiss | 3 |