| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 2137 |
43.6%
|
| 1.0 | Correct | 1343 |
27.4%
|
| i | Invalid | 260 |
5.3%
|
| u | Unanswered | 1156 |
23.6%
|
| Sysmiss | 3 |