| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 398 |
65.7%
|
| 2 | SOME DIFFICULTY | 61 |
10.1%
|
| 3 | A LOT OF DIFFICULTY | 9 |
1.5%
|
| 4 | CANNOT LEARN THINGS AT ALL | 1 |
0.2%
|
| 9 | NO RESPONSE | 5 |
0.8%
|
| Sysmiss | 132 |
21.8%
|