Chapter #11 Flashcards
(21 cards)
What is a Factorial Design?
Allows researchers to look at the effect of more than one independent variable (factor) at once. Each level of an independent variable (IV) is combined with every level of the other IV’s
Factorial Designs (Additive Effect):
Occurs when the combined effect is the sum of the separate effects
Factorial Designs (Interactive Effect):
Occurs when the effect of an independent variable changes at different levels of another independent variable
Crossover (disordinal) Interaction:
An independent variable has opposing effects on the dependent variable at the different levels of the other independent variable
Ordinal Interaction:
An interaction where an IV has a larger effect on the dependent variable at one level of the IV than at another level of that IV
Synergistic Effect:
The combined effect of two variables is greater than the effects of each variable
Suppression Effect:
The combined effect of two variables is less than the effects of each variable
Factorial Designs: Cell Means
The mean for the dependent variable for each combination of the levels of the independent variable
Factorial Design: Marginal Means
The means for the dependent variable for each level of an independent variable, averaged across all levels of other variables
The Main Effects Analyses and Compares Which Mean?
Marginal Means
The Interaction Analyses tests Differences Amog Which Means?
Cell Means
What is a Factor (IV)?
Something that can influence an outcome or DV
What is a Factorial Design?
An experimental design that has more than one IV
What is a Hybrid Design?
Any factorial design that has at least one quasi-IV
What is the Interaction of Variables?
When one IV’s influence on the DV changes depending on the level of other IV(s)
What is the Effect Hypothesis?
A prediction that focuses on the effect of one IV on the DV at the time, ignoring all other IVs
What is the Interaction Effect Hypothesis?
A prediction about how the levels of oe IV will combine with another IV to impact the DV in a way that extends beyond the sum of the two separate main effects
What is the Crossover (or Disordinal) Interaction?
When the influence of one IV on the other reverses across levels of the other IV
What is the Ordinal Interaction?
When one IV has an influence on one level, but not all levels of the other IV
What is the Synergistic Effect?
An effect where two variables combine to produce an outcome that is greater than what each individual variable contributes
What is the Suppression Effect?
An effect where two variables combine to produce an outcome that is smaller than what each individual variable contributes
