| Value |
Category |
Cases |
|
| -9 |
Don't know (spontaneous) |
4 |
|
| -7 |
Does not apply (spontaneous) |
13 |
|
| 1 |
Very easy |
26 |
|
| 2 |
Easy |
190 |
|
| 3 |
Difficult |
107 |
|
| 4 |
Very Difficult |
38 |
|
| Sysmiss |
|
641 |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
