Independent variable

Dependent variable

Standardized regression coefficient

Regression model summary

t

R

R²

Adjusted R²

F

PCB

JS

−0.393

−6.529^***

0.393

0.155

0.151

42.627^***

TI

0.368

6.048^***

0.368

0.136

0.132

36.582^***

JS

TI

−0.668

−13.715^***

0.668

0.447

0.444

188.107^***