| Demographic variable | Variable range | Percentage of High Schools | |
| Participant HS (N = 42) | Study area HS (N = 474) | ||
| Average daily membership*a | 4461.85 - 485.57 | 26.2 | 20.0 |
|
| 482.10 - 242.95 | 21.4 | 20.0 |
|
| 242.30 - 134.10 | 21.4 | 20.0 |
|
| 132.10 - 78.11 | 14.3 | 20.0 |
|
| 77.73 - 14.85 | 16.7 | 20.0 |
| Urban-centric classification**b | City | 2.4 | 7.2 |
|
| Suburban | 7.1 | 5.7 |
|
| Town | 26.2 | 17.7 |
|
| Rural | 64.3 | 69.4 |