| 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 |