| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 1029 |
21%
|
| 1.0 | Correct | 1560 |
31.9%
|
| i | Invalid | 1313 |
26.8%
|
| u | Unanswered | 994 |
20.3%
|
| Sysmiss | 3 |