Week 7 Factorial ANOVA

Question 1

Factorial ANOVA

Answer 1

Used to capture the joint effects of X and are reflected in statistical models

Introduces new sources of variance
- interaction - Product of basic X’s (Act as own X, like a product term)

Benefit - reduces the error term by using an interaction effect (Come out of error and become systematic)

Question 2

Effects in 2- way interaction

Answer 2

Higher order effect - 2 way interaction (Always test significance of this first)
Lower order effect - Main effects

Question 3

Non significant interaction effect

Answer 3

Mean there is no overlap between sources of variance

Question 4

Two way Anova

Answer 4

Have 2 main effect and an interaction effect

Question 5

Three way interaction

Answer 5

Have 3 main effect
Have 3 two way interaction
Have 1 three way interaction

Question 6

Unbalanced design

Answer 6

total mean is weighted

Look at type 3 ss data in output (automatically generated by SPSS)

Question 7

Balanced design

Answer 7

Descriptive and ANOVA the same

Question 8

Emmeans

Answer 8

Estimated marginal means

Question 9

Three - Way Interaction

Answer 9

Occurs when two factors have different two-way interactions across levels of the third (Moderation of moderation)