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4 Cards in this Set

  • Front
  • Back

Illustration of Moderation

Moderation vs. mediation

–Moderation allows to express conditional effect (condition Z will determine what type of effect X has on Y


–Mediation allows to model causal chains (X -> Z -> Y)

Illustration of a mediation effect

Rules that a mediation happens

Do the four rules of Baron and Kenny as separate regressions and observe the change in significance in the variable of interest


  1. Independent variable significantly predicts the mediator
  2. Mediator has a significant effect in the dependent variable
  3. Independent variable significantly predicts the dependent variable in the absence of the mediator
  4. Effect of the independent variable on the dependent variable shrinks when the mediator is added to the model