| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 6084 |
85%
|
| 2 | SOME DIFFICULTY | 796 |
11.1%
|
| 3 | A LOT OF DIFFICULTY | 144 |
2%
|
| 4 | CANNOT LEARN THINGS AT ALL | 9 |
0.1%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 121 |
1.7%
|