## What is the difference between moderator and mediator in research?

Moderator vs Mediator. • Mediator identifies and explains a relationship between two variables, whereas moderator influences the strength of a relationship. • Moderator can even change the direction of relationship between two variables, namely the independent and the dependent variable.

**What is the difference between a confounder and a mediator?**

A confounder is a third variable that affects variables of interest and makes them seem related when they are not. In contrast, a mediator is the mechanism of a relationship between two variables: it explains the process by which they are related. Why should you include mediators and moderators in a study?

### How does a mediator affect the relationship between two variables?

It explains how or why there is a relation between two variables. A mediator can be a potential mechanism by which an independent variable can produce changes on a dependent variable. When you fully account for the effect of the mediator, the relation between independent and dependent variables may go away.

**Why is the moderator variable called a moderator?**

The reason why this variable is called a moderator is because of the fact that it decides the strength of relationship between two variables. A moderator variable can increase or decrease the strength of relationship between two variables, but it can also change the direction of the relationship.

#### What is the mediator variable in mediation?

Another way to think about a mediator variable is that it carries an effect. In a perfect mediation, an independent variable leads to some kind of change to the mediator variable, which then leads to a change in the dependent variable.

**What is the difference between mediation package and Moderation analysis?**

However, the mediation package method is highly recommended as a more flexible and statistically powerful approach. Moderation analysis also allows you to test for the influence of a third variable, Z, on the relationship between variables X and Y.

## How does a moderator affect the strength of a relationship?

A moderator variable can increase or decrease the strength of relationship between two variables, but it can also change the direction of the relationship. A moderator influences the strength of a relationship and it can be introduced in a relationship to induce a change that is desired.