| Value | Category | 
|---|---|
| 1 | Not yet/has not pass Elementary School | 
| 2 | Elementary/Islamic Elementary | 
| 3 | Junior High/Islamic Junior High (MTs)/equivalent | 
| 4 | Senior High/Islamic Senior High (MA)/equivalent | 
| 5 | D1/D2/D3 | 
| 6 | D4/S1 | 
| 7 | S2/S3 | 
| 8 | Have not/never go to school | 
| 95 | Others, _______ | 
| 98 | Do Not Know | 
| 101 | .Z |