Table 1. Characteristics of courses and subjects involved in the study.
| Course | Participants | Posts | Topics |
|---|---|---|---|
| Course A | 17 | 634 | 20 |
| Course B | 33 | 1396 | 21 |
| Course C | 32 | 390 | 3 |
| Total | 82 | 2420 | 44 |
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