Skills assessment information is held in the IRDB in a variety of ways. One of these is the ALL_SKAT_PASSED series of variables. These variables have CODE and DESC versions. They are measured initially, as a best score, 1 year from entry, and two years from entry.

The values for the code/desc versions are as follows:
Code
Desc
0
Exempt/Passed None
1
Exempt/Passed Math Only
2
Exempt/Passed Writing Only
3
Exempt/Passed Reading Only
4
Exempt/Passed Math & Writing
5
Exempt/Passed Math & Reading
6
Exempt/Passed Writing & Reading
7
Exempt/Passed All
9
Exempt/Passed Unknown