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. 2020 Oct 1;32(1):2–6. doi: 10.1016/j.apnu.2017.09.006

Fig. 1.

Fig. 1

Statistical diagram of a simple mediation model with two independent variables.

a1, a2, b, c1, and c2: unstandardized regression coefficients; e1 and e2: unexplained parts of stress and mental health, respectively.

Two regression models: stress = constrant1 + a1·stigma + a2·hardiness + e1; mental health = constrant2 + c1·stigma + c2·hardiness + b·stress + e2

Indirect effect of stigma on mental health through stress was a1 × b, and the direct effect was c1; indirect effect of hardiness on mental health through stress was a2 × b, and the direct effect was c2.