Table 3.

Percent contributions to mediation total effect

$c_{p(c)}=\frac{b_{p\left(c\right)}}{b_{p\left(c\right)}}$	1
$c_{p\left(a,b\right)}=\frac{b_{p\left(a,b\right)}}{b_{p\left(c\right)}}$	2
$c_{p\left(d\right)}=\frac{b_{p\left(d\right)}}{b_{p\left(d\right)}}$	3
$c_{p\left(a\right)}=\frac{b_{p\left(a\right)}}{b_{p\left(a\right)}+b_{p\left(b\right)}}{c}_{p\left(a,b\right)}$	4
$c_{p\left(b\right)}=\frac{b_{p\left(b\right)}}{b_{p\left(a\right)}+b_{p\left(b\right)}}{c}_{p\left(a,b\right)}$	5

All paths (a, b, c, d and a*b) are assumed non-negative, i.e., 0 ≤ b_p ≤ 1, which is appropriate for the data of this study