Publication year and research method
| Methods | Year (2008-2022) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | Total | |
| Literature review & Position Paper | 2 | 8 | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 20 |
| Experimental study & Survey, in-depth interview | 0 | 3 | 2 | 3 | 2 | 0 | 2 | 2 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 20 |
| Total | 2 | 11 | 4 | 3 | 2 | 2 | 3 | 2 | 1 | 1 | 2 | 0 | 3 | 2 | 2 | 40 |