Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 0 |
0%
|
1 | Very easy | 98 |
8.2%
|
2 | Easy | 545 |
45.4%
|
3 | Difficult | 305 |
25.4%
|
4 | Very difficult | 132 |
11%
|
9 | Don't know | 120 |
10%
|
998 | Refused | 0 |
0%
|