5. Multi Group 2 Way ANOVA

Question 1

Why use the two way ANOVA?

Answer 1

Comparing two or more IVs

can see whether the IVs interact w each other

Question 2

What does the two-way MIXED ANOVA involve?

Answer 2

Involves both WITHIN and BETWEEN subject factors.

🔸 multiple IVs

Question 3

What post-hoc test do we do for two way (mixed) ANOVAs?

Answer 3

Between subject factors
🔸 homogeneity of variance
➖Levene’s test (nonsign)

Within subject factors
🔸 sphericity
➖Mauchly’s test (nonsign)

Question 4

Mixed ANOVA outputs: what tables would we get for within subject effects and interaction?

Answer 4

🔸 Multivariate test table
➖doesn’t assume sphericity

🔸 tests of within subjects effects