Figure 1.
The diagram represents a basic mediation model showing how an independent variable X influences a dependent variable Y directly and indirectly through a mediating variable M. Path a represents the effect of X on M, path b shows the effect of M on Y, and path c indicates the direct effect of X on Y. The total effect is expressed as c equal to a multiplied by b plus c prime, with the variance accounted for (V A F) calculated as a multiplied by b divided by a multiplied by b plus c prime.Simple mediation model
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