Mediator/Moderator Variables: how do I conduct a regression analysis?

07 July 2018 3 10K Report

Hi,

I need help interpreting and planning a regression analysis on my data.

I have data containing measures of Attractiveness, State Reactance, Anthropomorphism, perceived Intelligence, Pragmatic Quality and Hedonic Quality.

With that I want to do two things:

1: check if perceived Intelligence and Anthropomorphism are mediators or moderators of State Reactance

2: build a model to predict Attractiveness

My initial idea would be to run two regressions:

1: State Reactance as dependent variable and Intelligence, Anthropomorphism as independent variables

2: Attractiveness as the dependent variable and all other variables as independent variables.

But my Question is:

How do I include the Mediator/Moderator role of Intelligence and Anthropomorphism in the second model? -do I have to?

Does the first model actually show that Intelligence and Anthropomorphism are Mediators/Moderators if they produce significance in Model 1?

How do I decide if Intelligence and Anthropomorphism are Mediators or Moderators?

-Maybe create a third model with Attractiveness as the dependent variable and Intelligence and Anthropomorphism as independent variables? In this case, I would interpret independent variables that have significant influences in both models (Reactance(I&M) & Attractiveness(I&M)) as Mediators and variables that only have influence in the Reactance(I&M) model as Moderators?

I would really appreciate some help.

Thank you,

Patrick

Abolfazl Ghoodjani

Hi dear friend It's simple and interesting. I recommend using the Minitab software and the Assistant / Regression menu. Everything has been specified for you.

Patrick Ehrenbrink

Hi Abolfazl Ghoodjani,

thank you for your answer. My problem is not what software to use. My problem is how to design the Regression model. Is it a valid moderator/mediator test to conduct a regression analysis like stated in Model 1?

Best,

Ajit kumar Roy

Hi Patrick

I feel firstly develop a Correlation matrix with all variables. That may give you the right clues for your desired interest.

good luck.

ajit

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