Table 3.
Quality assessment of quantitative studies.
| First Author (Year) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Radwan M. (2017) | Y | Y | Y | N | Y | Y | Y | Y | Y | N | N |
| Radwan.M (2017) | Y | Y | Y | N | Y | Y | Y | Y | Y | N | N |
| Alsubaiei M.E. (2017) | Y | Y | Y | C | C | N | Y | C | Y | N | C |
| Salama A.A. (2010) | Y | Y | N | C | Y | Y | C | C | N | N | C |
| Aloush S.M. (2018) | Y | Y | N | Y | C | Y | Y | C | Y | N | C |
| Thabet F.C. (2017) | Y | Y | Y | N | Y | Y | Y | C | N | N | C |
| Sharif N.E. (2016) | Y | Y | Y | N | Y | Y | Y | C | Y | N | N |
| Jradi H. (2017) | Y | Y | N | C | C | N | N | C | Y | N | C |
| Al-Azzam S.I. (2012) | Y | Y | N | C | C | N | Y | C | N | N | C |
| Elsadig H. (2017) | Y | Y | C | C | C | N | Y | C | Y | N | C |
1. Did the study address a clearly focused question/issue? 2. Is the research method (study design) appropriate for answering the research question? 3. Is the method of selection of the subjects (i.e., employees, teams, divisions, and organizations) clearly described? 4. Could the method for obtaining the sample introduce (selection) bias? 5. Was the sample of subjects representative of the population to which the findings will be referred? 6. Was the sample size based on pre-study considerations of statistical power? 7. Was a satisfactory response rate achieved? 8. Are the measurements (questionnaires) valid and reliable? 9. Was the statistical significance assessed? 10. Are confidence intervals given for the main results? 11. Were confounding factors overlooked? Y: Yes, N: No, C: Can’t tell.