Table 5

Summary of the mediating effect test

Total effect (c)Direct effect (c′)Indirect effectsBootstrap percentileVAF
βt valueβt valueEstimated pointt value95% CI
LowestHighest
0.313***11.424H2: c0.140***5.470Total = a1×b1+ a2×b20.172***8.4420.1390.20655.08%
 H4a = a1×b1 M10.031***3.9310.0190.04518.09%
H4b = a2×b2 M20.141***7.3590.1100.17350.13%

Note(s):β: Coefficient; VAF: variance accounted for test. t value for 5,000 bootstrapping subsamples: (based on a distribution t (4,999) of one-tailed student). t (0.05; 4,999) = 1.645; t (0.01; 4,999) = 2.327; and t (0.001; 4,999) = 3.092. *p < 0.05, **p < 0.01 and ***p < 0.001

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