| Variable | N | Min. | Max. | Mean | SD |
| Content | 100 | 1.00 | 5.00 | 3.34 | 0.82 |
| Method | 100 | 1.00 | 5.00 | 4.03 | 0.68 |
| Materials | 100 | 1.00 | 4.80 | 3.44 | 0.79 |
| Objective | 100 | 1.00 | 5.00 | 3.37 | 0.82 |
| Assessment | 100 | 1.00 | 5.00 | 3.77 | 0.69 |