Statistics - Factorial Anova
Table of Contents
1 - About
A factorial ANOVA is done when the independent variables are categorical.
- N Independent Variables (IVs). Variables that are manipulated.
2 - Articles Related
3 - Difference between a one-way and a factorial ANOVA
Difference between a one-way and a factorial ANOVA:
- the number of F-ratios
4 - Independent by design
- independent from one another
- independent by design (An equal number of the subjects are randomly assigned to all conditions)
That's why we can test multiple hypotheses in one experiment.
I could have main effects and have an interaction, or have main effects and no interaction.
5 - After
- explore that interaction,
- to figure out where that interaction is coming from.
The way to do that is through simple effects analysis.
6 - degree of freedom
If we sum the degree of freedom all up, it should come out to the total number of subjects in the experiment minus 1.