Flashcards
Moderation and Mediation
Cards in this deck (7)
- 1What is moderation?It's when a variable has a different effect depending on the level of the other variable
- 21) Interactions between 2 categorical variablesNeed to code the variables.
The interaction term = X1*X2
Complete an MR using:
Y=c+X1xX2+(X1*X2) - 32) Interactions between a categorical variable and a continuous variableNeed to centre the continuous variables. Take the mean score for that predictor away from each of the scores for that predictor. If don't will have multicollinearity. Then perform a hierarchical regression.
- 43) Interactions between two continuous variablesNeed to standardise the scores (convert to Z-scores) Then multiply the 2 standardised predictors together.
Run MR with standardised P1 and P2 and interaction term (SP1*SP2) - 5Mediation?It's when the effect of one variable can have its effect on the criterion variable through another
- 6What's partial mediation?It's the effect of e.g. parties on exam performance is due partly to the fatigue cause by parties.
- 7What's complete mediation?The effect of e.g. parties on exam performance is due to the fatigue caused by parties.
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- Flashcards on Moderation and Mediation, created by franceskeel on 27/01/2015.
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