Chapter Eleven: Factorial Design Flashcards
Cell Mean
The average on the dependent variable for participants with a specific combination of the levels of the independent variables
Crossover Interaction
When the influence of one independent variable on the other reverses across levels of the other independent variable; also known as a disordinal interaction
Factor
Something that can influence an outcome or dependent variable; also known as an independent variable
Factorial Design
An experimental design that has more than one independent variable
Hybrid Design
Any factorial design that has at least one quasi-independent variable
Interaction
When one independent variable’s influence on the dependent variable changes depending on the level of the other independent variable(s)
Interaction Effect Hypothesis
A prediction about how the levels of one independent variable will combine with another independent variable to impact the dependent variable in a way that extends beyond the sum of the two separate main effects
Main Effect Hypothesis
A prediction that focuses on the effect of one independent variable on the dependent variable at a time, ignoring all other independent variables
Marginal Means
The average of all participants on one level of the independent variable, ignoring the other independent variable
Ordinal Interaction
When one independent variable has an influence on one level, but not all levels, of the other independent variable
Suppression Effect
An effect where two variables combine to produce an outcome that is smaller than what each individual variable contributes
Synergistic Effect
An effect where two variables combine to produce an outcome that is greater than what each individual contributes
Two-Way Analysis of Variance
A statistical test that allows us to simultaneously test how two separate nominal or categorical independent variables (or factors) influence the dependent variable, and how those independent variables interact to influence the dependent variable; also known as a two-way ANOVA or factorial ANOVA
Vignette
A description of a hypothetical situation, event, or scenario to which participants react