CASP critical appraisal of using the checklist for qualitative studies
| Assaf et al19 | Kingstone et al17 | Ladds et al18 | Maxwell1 | Davis et al16 | |
| Clear aims statement | Y | Y | Y | N | Y |
| Appropriate methodology | U | Y | Y | Y | Y |
| Appropriate research design | U | Y | Y | U | Y |
| Appropriate recruitment | Y | Y | Y | U | Y |
| Appropriate data collection | U | Y | Y | U | Y |
| Researcher-participant relationship considered | N | U | U | U | U |
| Ethical issues considered | U | Y | Y | U | Y |
| Rigorous data analysis | U | Y | Y | N | U |
| Clear statement of findings | U | Y | Y | Y | Y |
N, criterion not satisfied; U, unclear if criterion satisfied; Y, criterion satisfied.