Author | Abstract and title | Introduction and aims | Method and data | Sampling | Data analysis | Ethics and bias | Results | Transferability or generalizability | Implications and usefulness | Total |
Hammer et al. [12] | 40 | 40 | 30 | 40 | 40 | 40 | 40 | 40 | 40 | 350 |
Bar-Sela et al. [13] | 40 | 40 | 30 | 40 | 40 | 40 | 40 | 40 | 40 | 350 |
Bozcuk et al. [14] | 40 | 30 | 30 | 30 | 40 | 10 | 40 | 30 | 40 | 290 |
Geue et al. [15] | 30 | 40 | 40 | 40 | 30 | 40 | 40 | 40 | 30 | 330 |
Geue et al. [16] | 40 | 40 | 40 | 30 | 40 | 20 | 40 | 40 | 40 | 330 |
Oster et al. [17] | 30 | 40 | 30 | 40 | 40 | 30 | 40 | 40 | 40 | 330 |
Singer et al. [18] | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 30 | 350 |
Peng et al. [19] | 40 | 20 | 40 | 30 | 40 | 30 | 40 | 40 | 30 | 310 |
Svensk et al. [20] | 40 | 30 | 30 | 40 | 30 | 40 | 40 | 40 | 40 | 330 |
Thyme et al. [21] | 40 | 30 | 30 | 40 | 30 | 40 | 40 | 40 | 40 | 330 |
Zhao & Tang [22] | 30 | 30 | 30 | 30 | 20 | 10 | 30 | 30 | 20 | 230 |