| between 1993 | 4 | temporal |
| according to one case study | 3 | other |
| annually | 2 | temporal |
| parent → be → surveyed | 47 |
| parent → be surveyed in → the study | 4 |
| parent → be involved in → the survey | 4 |
| negative | neutral | positive |
| 0.231 | 0.682 | 0.087 |
| Raw frequency | 55 |
| Normalized frequency | 0.427 |
| Modifier score | 0.950 |
| Perplexity | 181.788 |