Value | Category | Cases | |
---|---|---|---|
-1 | Missing data | 0 |
0%
|
1 | Incorrect answer | 230 |
18.3%
|
2 | Correct answer | 510 |
40.6%
|
9 | Don't know | 516 |
41.1%
|
998 | Refused | 0 |
0%
|