Hierarchical variable

Variables within the hierarchy

Hierarchy one

Hierarchy two

t

t

Independent variable

PCB

0.368

6.048^***

0.125

2.379^*

Mediating variable

JS

−0.619

−11.800^***

Regression model summary

F

36.582^***

98.764^***

R²

0.136

0.460

F

36.582^***

139.241^***

R²

0.136

0.324