| Value | Category | Cases | |
|---|---|---|---|
| 1 | (1) Spontaneously | 87 |
6.2%
|
| 2 | (2) Mimics | 63 |
4.5%
|
| 3 | (3) 1 syllable babble e.g. ba, ma, da | 195 |
13.8%
|
| 4 | (4) The child does not babble at all | 618 |
43.9%
|
| Sysmiss | 437 |
31%
|
|
| d | 6 |
0.4%
|
|
| r | 2 |
0.1%
|