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