Figure 1
Identification of final research corpus through Prisma Diagram.
Figure 2
Themes and concepts derived from the MOOC research.
Figure 3
SNA of the keywords from sampled publications.
Figure 4
Articles that were most cited between 2016 and 2018.
Figure 5
References cited by the articles published between 2016 and 2018.
Figure 6
The three waves of MOOCs.
Appendix 1
Top 30 keywords with highest betweenness centrality.
| VERTEX | DEGREE | BETWEENNESS CENTRALITY | CLOSENESS CENTRALITY | EIGENVECTOR CENTRALITY | PAGERANK | CLUSTERING COEFFICIENT |
|---|---|---|---|---|---|---|
| MOOCs | 90 | 2832.643 | 0.011 | 0.064 | 9.541 | 0.079 |
| online learning | 29 | 142.871 | 0.006 | 0.027 | 3.003 | 0.180 |
| learning analytics | 29 | 141.045 | 0.006 | 0.027 | 3.064 | 0.197 |
| internet | 9 | 117.775 | 0.006 | 0.010 | 1.164 | 0.361 |
| e-learning | 24 | 86.835 | 0.006 | 0.025 | 2.494 | 0.264 |
| distance learning | 23 | 61.252 | 0.006 | 0.026 | 2.326 | 0.312 |
| lifelong learning | 8 | 59.971 | 0.006 | 0.012 | 0.962 | 0.464 |
| distance education | 20 | 57.073 | 0.006 | 0.022 | 2.086 | 0.326 |
| education | 18 | 50.851 | 0.006 | 0.020 | 1.897 | 0.320 |
| higher education | 21 | 48.880 | 0.006 | 0.024 | 2.135 | 0.305 |
| computer-mediated communication | 4 | 31.283 | 0.006 | 0.005 | 0.611 | 0.500 |
| instructional design | 16 | 30.583 | 0.006 | 0.016 | 1.721 | 0.333 |
| flipped classroom | 7 | 29.687 | 0.006 | 0.008 | 0.904 | 0.333 |
| learning environments | 18 | 29.426 | 0.006 | 0.020 | 1.818 | 0.405 |
| motivation | 13 | 26.261 | 0.006 | 0.012 | 1.561 | 0.269 |
| Coursera | 15 | 25.581 | 0.006 | 0.018 | 1.543 | 0.381 |
| virtual reality | 4 | 21.192 | 0.006 | 0.007 | 0.553 | 0.500 |
| teaching reform | 3 | 15.696 | 0.006 | 0.005 | 0.499 | 0.333 |
| open learning | 12 | 15.576 | 0.006 | 0.014 | 1.353 | 0.394 |
| social networks | 12 | 14.392 | 0.006 | 0.014 | 1.295 | 0.439 |
| online education | 11 | 11.676 | 0.006 | 0.014 | 1.217 | 0.455 |
| SPOC | 10 | 11.033 | 0.006 | 0.012 | 1.114 | 0.400 |
| collaborative learning | 11 | 9.833 | 0.006 | 0.013 | 1.196 | 0.473 |
| discussion forums | 10 | 9.268 | 0.006 | 0.013 | 1.124 | 0.556 |
| connectivism | 10 | 8.150 | 0.006 | 0.011 | 1.098 | 0.489 |
| assessment | 8 | 7.750 | 0.006 | 0.010 | 0.999 | 0.393 |
| blended learning | 10 | 7.210 | 0.006 | 0.015 | 1.082 | 0.533 |
| teaching | 10 | 6.900 | 0.006 | 0.014 | 1.085 | 0.556 |
| machine learning | 8 | 6.867 | 0.006 | 0.010 | 0.959 | 0.393 |
| educational technology | 9 | 6.411 | 0.006 | 0.012 | 0.997 | 0.556 |
| engagement | 8 | 6.075 | 0.006 | 0.010 | 0.930 | 0.464 |