Table 1.
Methodological characteristics of the reviewed studies (N = 32).
| Methodological criterion | Description | n of studies | (%) |
|---|---|---|---|
| Study design | Longitudinal study | 6 | 18.8 |
| Cross-sectional study | 26 | 81.2 | |
| Sample size | Large (>500) | 15 | 46.8 |
| Medium (>100 and <500) | 14 | 43.8 | |
| Small (<100) | 3 | 9.4 | |
| Data collection method/data | National level | 5 | 15.6 |
| source | State/territory-level | 2 | 6.3 |
| Community/school-level | 20 | 62.5 | |
| Agency administrative data | 5 | 15.6 | |
| Data analysis | More advanced statistics | 4 | 12.5 |
| Regression/analysis of covariance | 27 | 84.4 | |
| Bivariate statistics | 1 | 3.1 | |
| Measurement of mental health | Reliability tested/reported | 11 | 34.4 |
| problem/need | Validity tested/reported | 8 | 25 |
| Measurement of | Reliability tested/reported | 12 | 37.5 |
| barriers/facilitators | Validity tested/reported | 7 | 21.9 |
| Theoretical framework | Reported | 9 | 28.1 |
| Not reported | 23 | 71.9 |