Table A7. Four Models for school 008.
| Effect name | Model 1 | Model 2 | Model 3 | Model 4 |
|---|---|---|---|---|
| Network decision: selection processes | beta (s.e.) | beta (s.e.) | beta (s.e.) | beta (s.e.) |
| Constant friendship rate (period 1) | 5.65*** (0.61) | 9.18*** (0.84) | 10.82*** (1.09) | 12.96*** (1.78) |
| Constant friendship rate (period 2) | 4.06*** (0.62) | 6.29*** (0.77) | 6.34*** (0.70) | 6.94*** (0.64) |
| Out-degree (density) | -1.73*** (0.35) | -1.54*** (0.35) | -1.67*** (0.29) | -1.88*** (0.19) |
| Reciprocity | 1.86*** (0.33) | 1.80*** (0.26) | 1.82*** (0.26) | 1.97*** (0.26) |
| Transitive triplets | 0.93*** (0.18) | 0.53*** (0.11) | 0.47*** (0.12) | 0.32** (0.10) |
| 3-cycles | -0.53* (0.27) | -0.62** (0.19) | -0.53** (0.19) | -0.27* (0.13) |
| In-degree - popularity | 0.23*** (0.07) | 0.14*** (0.03) | 0.11** (0.04) | 0.09** (0.03) |
| In-in degreeˆ(1/2) assortativity | -0.42† (0.23) | -0.24* (0.10) | -0.16 (0.13) | -0.13 (0.10) |
| Grade similarity | 0.57*** (0.09) | 0.64*** (0.06) | 0.59*** (0.05) | 0.49*** (0.05) |
| Smoking alter | 0.20† (0.12) | 0.42† (0.25) | 0.45† (0.24) | 0.44* (0.19) |
| Smoking ego | -0.26 (0.18) | -0.52 (0.34) | -0.47 (0.29) | -0.38* (0.18) |
| Smoking similarity | 0.41* (0.18) | 0.36 (0.28) | 0.45 (0.30) | 0.46* (0.23) |
| Limited nomination ego | -1.57*** (0.45) | -1.49*** (0.30) | -1.34*** (0.28) | -1.21*** (0.25) |
| Behavior decision: influence processes | ||||
| Rate smoking behavior (period 1) | 3.22** (1.00) | 8.15** (2.51) | 11.83** (3.92) | 11.32*** (2.35) |
| Rate smoking behavior (period 2) | 10.53* (5.16) | 42.50** (13.16) | 40.18*** (10.43) | 37.01*** (7.68) |
| Smoking behavior linear shape | -2.08*** (0.33) | -2.36*** (0.24) | -2.50*** (0.23) | -2.44*** (0.27) |
| Smoking behavior quadratic shape | 0.66*** (0.10) | 0.71*** (0.08) | 0.70*** (0.08) | 0.70*** (0.07) |
| Smoking behavior in-degree | -0.04 (0.06) | -0.01 (0.02) | 0.01 (0.02) | 0.00 (0.02) |
| Smoking behavior new similarity | 0.19 (0.32) | 0.13 (0.21) | 0.34 (0.44) | 0.32† (0.19) |
| Effect from gender (female=1) | 0.06 (0.23) | -0.03 (0.08) | -0.02 (0.08) | -0.02 (0.09) |
| Effect from depression | -0.12 (0.21) | -0.08 (0.08) | -0.08 (0.08) | -0.09 (0.08) |
| Effect from home smoking environment | 0.10 (0.12) | 0.10 (0.07) | 0.16† (0.08) | 0.16* (0.07) |
| Effect from parental support | -0.36 (0.36) | -0.29 (0.19) | -0.33* (0.14) | -0.31† (0.18) |
†
Two-sided p<0.1;
*
Two-sided p<0.05;
**
Two-sided p<0.01;
***
Two-sided p<0.001