| Model 1 | Model 2 | Model 3 | Model 4 |
Dependent variable | Coordination process performance | Design quality | Design schedule | Design cost control |
Independent variable | Frequency of interdisciplinary communication | Frequency of interdisciplinary communication | Frequency of interdisciplinary communication | Frequency of interdisciplinary communication |
b1 | 3.691*** | 3.745*** | 3.626*** | 3.539*** |
| (0.0571) | (0.0472) | (0.0468) | (0.0472) |
b2 | 0.235*** | 0.0133 | −0.00138 | −0.0509 |
| (0.0448) | (0.0603) | (0.0618) | (0.0630) |
N | 642 | 445 | 445 | 444 |
Adjusted R-squared | 0.904 | 0.937 | 0.934 | 0.928 |