Chapter 10 Flashcards
Moderation occurs when the relationship __________ two variables changes as a function of a ____ variable.
Moderation occurs when the relationship BETWEEN two variables changes as a function of a 3RD variable.
Moderation is tested using a _________.
REGRESSION
When Moderation is tested using a regression the outcome is predicted from a __________, the __________ and the ____________ of these variables
Moderation is tested using a regression in which the outcome is predicted from a PREDICTOR, the MODERATOR and the INTERACTION of these variables
IN THIS EXAMPLE PLEASE LIST WHAT IS THE MODERATOR?
The relationship between watching horror films and feeling scared at bedtime might increase as a function of how vivid an imagination a person has.
OUTCOM
MODERATOR:
IMAGINATION
OUTCOME:
FEAR AT BEDTIME
Predictors should be ______ before the analysis
centered
The interaction of two variables is simply the scores on the two variables …
multiplied together
How do we know if moderation is present
If the interaction is significant
If moderation is found, we need to…
…follow up the analysis with simple slopes analysis.
Simple slopes analysis looks at the relationship between the predictor and the ______ _____ at low, mean and high levels of the __________.
This analysis looks at the relationship between the predictor and OUTCOME VARIABLE at low, mean and high levels of the MODERATOR.
Mediation is when the strength of the relationship between a predictor variable and outcome variable is _________ by …
Mediation is when the strength of the relationship between a predictor variable and outcome variable is REDUCED by INCLUDING ANOTHER VARIABLE AS A PREDICTOR.
Mediation is when the ______ of the relationship between a predictor variable and outcome variable is __________by including another variable as a predictor
Mediation is when the STRENGTH of the relationship between a predictor variable and outcome variable is REDUCED by including another variable as a predictor
mediation equates to the relationship between two variables…
…being explained by a third
Mediation is tested by …
…assessing the size of the indirect effect and its confidence interval.
When assessing mediation and the confidence interval includes zero we- can or cannot- be confident a genuine effect exists.
If the confidence interval contains zero then we cannot be confident that a genuine mediation effect exists.
The size of the indirect effect can be expressed using …
kappa-squared