Hello,

I am trying to find out which effect sizes can be detected with a simple mediation analysis, that was conducted in SPSS using the PROCESS Macro by Hayes (Model 4).

I have the following information:

  • Sample Size N = 1081
  • α = .05
  • 1−β = .90

How can I find out, which size the indirect effect has, that can be detected in the simple mediation analysis with these settings? Which program can I use for this?

Does the effect size that can be detected for the indirect effect depend on path a and path b?

Figure is taken from: The Englisch Wikipedia site "Mediation (statistics)"

Kind regards,

Max

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