| Variables | PAP | ORP |
| Difficulties in taking written or oral exams | 0.793 | 0.791 |
| Difficulties during learning | 0.749 | 0.785 |
| Difficulties during lessons | 0.737 | 0.746 |
| Lack of time when writing an exam | 0.641 | 0.614 |
| Financial difficulties during the study | 0.508 | 0.536 |