Value | Category | Cases | |
---|---|---|---|
-1 | Missing data | 0 |
0%
|
1 | Incorrect answer | 491 |
20.8%
|
2 | Correct answer | 1635 |
69.2%
|
9 | Don't know | 237 |
10%
|
998 | Refused | 0 |
0%
|