| Value | Category | Cases | |
|---|---|---|---|
| 0 | Incorrect | 1025 |
17.4%
|
| 1 | Child correctly writes 13/16 as answer | 80 |
1.4%
|
| Sysmiss | 4622 |
78.4%
|
|
| r | 166 |
2.8%
|