Value |
Category |
-999 |
rta |
-888 |
dk |
-777 |
mv |
-666 |
Skip |
-555 |
Other |
-222 |
na |
1 |
Correct |
2 |
Not correct |
Sysmiss |
|
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.