| Value | Category | Cases | |
|---|---|---|---|
| 0.0 | Incorrect | 1174 |
24%
|
| 1.0 | Correct | 3473 |
70.9%
|
| i | Invalid | 32 |
0.7%
|
| u | Unanswered | 217 |
4.4%
|
| Sysmiss | 3 |