| in nature | 7 | location |
| from a peer-reviewed journal | 3 | other |
| without source | 2 | other |
| article → be → empirical | 37 |
| article → be based on → empirical research | 7 |
| article → be → empirical study | 5 |
| negative | neutral | positive |
| 0.048 | 0.725 | 0.228 |
| Raw frequency | 49 |
| Normalized frequency | 0.376 |
| Modifier score | 0.900 |
| Perplexity | 201.826 |