Study number	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
1. Clear statement of aims?	2	2	1	2	2	1	1	2	2	2	1	2	0	1	2	2	2	2	1	2
2. Is a qualitative method appropriate?	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
3. Research design appropriate for aims?	1	2	1	2	1	2	1	1	1	1	1	2	1	1	1	1	1	1	1	2
4. Appropriate recruitment strategy?	1	1	2	1	2	1	2	1	1	1	1	1	1	2	2	2	2	1	1	2
5. Data collected appropriately?	1	0	1	2	1	0	2	2	1	1	1	1	2	1	1	2	2	2	1	2
6. Relationship between researcher and participants considered?	0	1	0	2	2	0	0	0	0	2	0	0	0	1	1	1	1	0	0	2
7. Ethical issues considered?	2	0	2	2	2	2	1	1	1	1	0	2	2	1	1	1	2	2	1	2
8. Data analysis rigorous?	0	2	0	2	2	1	1	1	2	2	0	0	1	1	2	2	2	1	0	2
9. Clear statement of findings?	1	2	1	2	1	1	1	1	1	2	1	1	2	1	2	2	2	1	1	2
10. How valuable is the research?	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Average	1.2	1.4	1.2	1.9	1.7	1.2	1.3	1.3	1.3	1.6	0.9	1.3	1.3	1.3	1.6	1.7	1.8	1.4	1	2