VIFs and Standard errors of PRK and SRK in different regression models
| Models including different variables | Comment amount | PRK | SRK | |||
|---|---|---|---|---|---|---|
| VIFs | SD | VIFs | SD | VIFs | SD | |
| CVs + PRK | 1.05 | 0.14 | ||||
| CVs + PRK + SRK | 1.8 | 0.21 | 1.9 | 0.14 | ||
| CVs+Comment Amount + PRK + SRK | 3.4 | 0.11 | 2.3 | 0.24 | 2.7 | 0.16 |
| Models including different variables | Comment amount | PRK | SRK | |||
|---|---|---|---|---|---|---|
| VIFs | SD | VIFs | SD | VIFs | SD | |
| CVs + PRK | 1.05 | 0.14 | ||||
| CVs + PRK + SRK | 1.8 | 0.21 | 1.9 | 0.14 | ||
| CVs+Comment Amount + PRK + SRK | 3.4 | 0.11 | 2.3 | 0.24 | 2.7 | 0.16 |
Notes: a:SD = Standard errors, VIFs = Variance inflation factors
b: CVs = all control variables excluding comment amount, PRK = Problem-related knowledge sharing, SRK = Solution-related knowledge sharing
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