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Celeste. C. posted on Thursday, July 26, 2012 - 2:45 am
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I have a simple mediation model, i would like to know if there is any thumb rule to claim that a direct/ indirect effect (standardized regression weight in SEM) is of practical importance? Appreciate if there is any reference. Thank you. |
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If the covariate is binary, you can use the values for Cohen's effect size. |
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Thanks Dr Muthen. How about indirect effect size? Any thumb rule for tha? |
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It's the same. If the observed exogenous variable in the indirect effect is binary, use Cohen's effect size. |
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K C posted on Saturday, March 19, 2016 - 7:37 pm
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Hello there, 1. What if the mediator is not binary (continuous)? Can the standardized indirect effect coefficients still be interpreted as "sizes" of the effect, as per Cohen? 2. I am trying to determine the effect sizes of a mediation model that goes through several paths (M1 -> M2 -> M3). Is the coefficient interpreted the same way or would it be different since there is additional multiplication of the indirect paths, leading to smaller coefficient values? Thanks! |
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1. Yes. The scale of the mediator does not matter. 2. The size of the indirect effect need only be considered with respect to the SD of the x variable (the exposure) and the y variable (the outcome). |
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