Researcher | Year | Criteria | Grade | |||||
Objective and goals | Study context | Sampling | Methodology | Data | The results of the study are validated | |||
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |
| | / | / | / | / | / | / | A |