Mediation Tests.
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资源简介：
*p**p***p(1) a: coefficient representing the estimated association of physical inactivity (y) with perceived exercising alters (x).(2) b: coefficient representing the estimated association of obesity (y) with physical inactivity (x).(3) ab: product of the two coefficients, representing an estimate of the mediated effect.
创建时间：
2015-12-02
