Negative binomial regression results
| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | Model 7 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| β (se) | p | β (se) | p | β (se) | p | β (se) | p | β (se) | p | β (se) | p | β (se) | p | |
| Intercept | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 |
| Picture | 0.21 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.19 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.18 (0.02) | 0.000 |
| Video | −1.71 (0.05) | 0.000 | −1.73 (0.05) | 0.000 | −1.72 (0.05) | 0.000 | −1.74 (0.05) | 0.000 | −1.75 (0.05) | 0.000 | −1.75 (0.05) | 0.000 | −1.75 (0.05) | 0.000 |
| Word count | 0.34 (0.01) | 0.000 | 0.34 (0.01) | 0.000 | 0.33 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.34 (0.01) | 0.000 |
| First-person pronouns' frequency | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.05 (0.01) | 0.000 | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.06 (0.01) | 0.000 |
| Second-person pronouns' frequency | −0.14 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.15 (0.01) | 0.000 | −0.15 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.17 (0.01) | 0.000 |
| Third-person pronouns' frequency | 0.14 (0.01) | 0.000 | 0.13 (0.01) | 0.000 | 0.13 (0.01) | 0.000 | 0.15 (0.01) | 0.000 | 0.15 (0.01) | 0.000 | 0.14 (0.01) | 0.000 | 0.13 (0.01) | 0.000 |
| Affective words' frequency | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.07 (0.01) | 0.000 | −0.03 (0.01) | 0.000 | −0.02 (0.01) | 0.002 | −0.03 (0.01) | 0.000 | −0.03 (0.01) | 0.000 |
| Device types (DT) (mobile phone = 1, PC = −1) | 0.48 (0.01) | 0.000 | 0.48 (0.01) | 0.000 | 0.48 (0.01) | 0.000 | 0.48 (0.01) | 0.000 | 0.48 (0.01) | 0.000 | 0.47 (0.01) | 0.000 | 0.45 (0.01) | 0.000 |
| Social features (SF) | 0.07 (0.01) | 0.000 | 0.11 (0.01) | 0.000 | 0.06 (0.01) | 0.000 | 0.10 (0.01) | 0.000 | ||||||
| DT * SF | 0.08 (0.01) | 0.000 | 0.08 (0.01) | 0.000 | ||||||||||
| Achievement features (AF) | −0.08 (0.01) | 0.000 | −0.09 (0.01) | 0.000 | −0.04 (0.01) | 0.000 | −0.08 (0.01) | 0.000 | ||||||
| DT * AF | −0.08 (0.01) | 0.000 | −0.08 (0.01) | 0.000 | ||||||||||
| Maximum VIF | 1.31 | 1.48 | 2.01 | 1.31 | 1.52 | 1.48 | 1.57 | |||||||
| 2*log likelihood | −1994919.91 | −1994835.62 | −1994728.09 | −1994717.74 | −1994800.36 | −1994694.11 | −1994618.41 | |||||||
| Likelihood ratio | 2161.80 | 0.000 | 84.29 | 0.000 | 107.53 | 0.000 | 202.17 | 0.000 | −82.62 | 0.000 | 2387.61 | 0.000 | 76.30 | 0.000 |
| AIC | 1,994,942 | 1,994,860 | 1,994,754 | 1,994,742 | 1,994,436 | 1,9947,20 | 1,994,630 | |||||||
| BIC | 1,995,049 | 1,994,977 | 1,994,881 | 1,994,859 | 1,994,721 | 1,994,847 | 1,994,777 | |||||||
| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | Model 7 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 | 8.89 (0.01) | 0.000 |
| Picture | 0.21 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.19 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.20 (0.02) | 0.000 | 0.18 (0.02) | 0.000 |
| Video | −1.71 (0.05) | 0.000 | −1.73 (0.05) | 0.000 | −1.72 (0.05) | 0.000 | −1.74 (0.05) | 0.000 | −1.75 (0.05) | 0.000 | −1.75 (0.05) | 0.000 | −1.75 (0.05) | 0.000 |
| Word count | 0.34 (0.01) | 0.000 | 0.34 (0.01) | 0.000 | 0.33 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.35 (0.01) | 0.000 | 0.34 (0.01) | 0.000 |
| First-person pronouns' frequency | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.05 (0.01) | 0.000 | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.06 (0.01) | 0.000 |
| Second-person pronouns' frequency | −0.14 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.15 (0.01) | 0.000 | −0.15 (0.01) | 0.000 | −0.17 (0.01) | 0.000 | −0.17 (0.01) | 0.000 |
| Third-person pronouns' frequency | 0.14 (0.01) | 0.000 | 0.13 (0.01) | 0.000 | 0.13 (0.01) | 0.000 | 0.15 (0.01) | 0.000 | 0.15 (0.01) | 0.000 | 0.14 (0.01) | 0.000 | 0.13 (0.01) | 0.000 |
| Affective words' frequency | −0.05 (0.01) | 0.000 | −0.06 (0.01) | 0.000 | −0.07 (0.01) | 0.000 | −0.03 (0.01) | 0.000 | −0.02 (0.01) | 0.002 | −0.03 (0.01) | 0.000 | −0.03 (0.01) | 0.000 |
| − | ||||||||||||||
| Maximum VIF | 1.31 | 1.48 | 2.01 | 1.31 | 1.52 | 1.48 | 1.57 | |||||||
| 2*log likelihood | −1994919.91 | −1994835.62 | −1994728.09 | −1994717.74 | −1994800.36 | −1994694.11 | −1994618.41 | |||||||
| Likelihood ratio | 2161.80 | 0.000 | 84.29 | 0.000 | 107.53 | 0.000 | 202.17 | 0.000 | −82.62 | 0.000 | 2387.61 | 0.000 | 76.30 | 0.000 |
| AIC | 1,994,942 | 1,994,860 | 1,994,754 | 1,994,742 | 1,994,436 | 1,9947,20 | 1,994,630 | |||||||
| BIC | 1,995,049 | 1,994,977 | 1,994,881 | 1,994,859 | 1,994,721 | 1,994,847 | 1,994,777 | |||||||
Note(s): “se” refers to the standard error and is shown in parentheses
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