Figure 1
Descriptive statistics of student scores and forum activities_
| N | Minimum | Maximum | Mean | Std. Deviation | |
|---|---|---|---|---|---|
| Tests/113.0 | 1,917 | 0 | 113 | 69.23 | 38.98 |
| Exercises/30.0 | 2,625 | 3 | 30 | 15.30 | 7.21 |
| Exams/30.0 | 1,264 | 0 | 30 | 28.38 | 2.67 |
| Discussions/30.0 | 3,231 | 0 | 30 | 22.10 | 13.21 |
| Posts | 804 | 0 | 15 | 0.57 | 1.46 |
| Comments | 804 | 0 | 46 | 0.43 | 2.29 |
| Replies | 804 | 0 | 116 | 3.59 | 8.02 |
| Total Score/100 | 3,231 | 0 | 99.8 | 48.15 | 34.97 |
Test statistics_
| Test Score | Exercises Score | Exam Score | Total Score | |
|---|---|---|---|---|
| Z | -4.439 | -5.06 | -5.983 | -3.918 |
| P-value | .000 | .000 | .000 | .000 |
Results of nonparametric tests_
| Group | N | Mean Rank | Mean score | |
|---|---|---|---|---|
| Tests | Non-discussion | 1,343 | 798.94 | 58.97 |
| Discussion | 573 | 1,332.49 | 94.31 | |
| Exercises | Non-discussion | 2,056 | 1,138.56 | 13.5 |
| Discussion | 568 | 1,942.11 | 21.77 | |
| Exams | Non-discussion | 755 | 591.66 | 28.02 |
| Discussion | 508 | 691.96 | 28.87 | |
| Scores | Non-discussion | 2,599 | 1,400.70 | 40.14 |
| Discussion | 631 | 2,500.22 | 81.05 |
Participants and threads they participate in_
| Username | Thread 1 | Thread 2 | Thread 3 | Thread 4 | Thread 5 |
|---|---|---|---|---|---|
| Viannn | √ | √ | √ | √ | √ |
| Winner | √ | √ | √ | √ | |
| Day@4 | √ | √ | √ | √ | |
| mooc15951364231 | √ | √ | √ | ||
| Lin Wei ykt1123 | √ | √ | √ | ||
| Red Fruit mooc4 | √ | √ | |||
| Chongqing WZZ | √ | √ | |||
| AYmooc | √ | √ | |||
| Monogram | √ | √ | |||
| SUNSET | √ | √ |
Edge degree and super-edge degree of threads_
| Thread | Edge degree | Super-edge degree |
|---|---|---|
| Thread 1 | 8 | 6.62 |
| Thread 2 | 8 | 6.90 |
| Thread 3 | 5 | 3.10 |
| Thread 4 | 5 | 2.93 |
| Thread 5 | 3 | 1.14 |
Regression analysis results_
| Coefficient | P-value | ||
|---|---|---|---|
| Comment | 0.879 | .004 | |
| Reply | 3.937 | .000 | |
| Post | 1.776 | .000 | |
| (Constant) | −.900 | .242 | |
| Adjusted R2 | 0.657 | ||
| P-value | 0.000 |
Node degree and super-node degree of participants_
| Username | Node degree | Super-node degree |
|---|---|---|
| Viannn | 5 | 5 |
| Winner | 4 | 3.59 |
| Day@4 | 4 | 3.31 |
| mooc15951364231 | 3 | 2.17 |
| Lin Wei ykt1123 | 3 | 1.86 |
| Red Fruit mooc4 | 2 | 1.10 |
| Chongqing WZZ | 2 | 1.10 |
| AYmooc | 2 | 0.90 |
| Monogram | 2 | 0.90 |
| SUNSET | 2 | 0.76 |