Example Of Moderators And Mediator

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Introduction
In psychological research it is important to understand the effects of moderators and mediators to the research being conducted. A moderator is a variable that exists prior to the experiment which affects the reaction of the independent variable on the dependent variable. A mediator is a variable that reduces the significance of the relationship of an independent variable on the dependent variable. A way to understand this concept is to explore specific examples.
Example 1
High satisfaction with one's direct supervisor leads to lower levels of employee turnover. In other words, employees who are highly satisfied with their direct supervisor are less likely to leave an organization than employees who are dissatisfied with their …show more content…

In other words, children who are read to more by their parents show faster cognitive development than children who are read to less often (National Scientific Council on the Developing Child, 2007).
In this example, a possible moderator is the child’s IQ. A child’s inherited IQ could change the relationship between the parent to child reading rate (independent variable) to the faster cognitive development (dependent variable). The child with a high IQ is likely to show faster cognitive development, although their parents do not read to them, whereas the child with a low IQ is likely to show slower cognitive development, even if the parents read to …show more content…

Even if a parent reads to his or her child often, the child’s cognitive development is likely to be affected by his or her teacher. If the teacher does not succeed in inspiring the child, then it is likely that the rate of cognitive development will be lower than a child with a successfully inspiring teacher, regardless of parent to child reading rate.
Example 3
The experience of being socially excluded leads to increases in aggressive behavior. Research has found that when people are excluded by others, they are more likely to behave aggressively, even to people who did not initially exclude them (Twenge, Baumeister, Tice, & Stucke, 2001).
In this example, a possible moderator is a child that has Asperger Syndrome. Asperger Syndrome is a mild form of autism. Two symptoms of Asperger Syndrome are that the child does not recognize social cues and has a tendency to keep to themselves. A person with these characteristics would not recognize they were being excluded, so their aggressiveness would be unaffected by being excluded.
A possible mediator in this example is a teacher who takes the time to talk to students about the situation resulting in the child feeling good about themselves. External kindness from other sources which boost the excluded child’s morale could have a mediating effect on aggressive behavior.
Example

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