| Value | Category | Cases | |
|---|---|---|---|
| -9 | DON’T KNOW (SPONTANEOUS) | 4 |
1%
|
| -7 | DOES NOT APPLY (SPONTANEOUS) | 30 |
7.5%
|
| 0 | Very easy | 70 |
17.5%
|
| 1 | Easy | 189 |
47.3%
|
| 2 | Difficult | 94 |
23.5%
|
| 3 | Very dificult | 13 |
3.3%
|
| Sysmiss | 1173 |