Mixed Designs

Question 1

Components of Mixed Design ANOVA

Answer 1

Between Subject factor
Within Subject factor
Separate error on both sides (error for between and for within)

Question 2

Simple Effects in Mixed Design

Answer 2

Sometimes called simple main effects
Changes what error term is used
Best to use weighted error term, but can also use within for within simple effects and between for between simple effects

Question 3

Weighted MSE Simple Effects

Answer 3

For within simple effects, use MSE for within subjects
For between simple effects, use weighted MSE or MSE for between subjects

Question 4

Change Scores

Answer 4

Represents a change between some other variable (e.g. between time 1 and time 2)
Useful to get at and understand interactions
Do ANOVA using the new variable

Question 5

Variability in Mixed Design

Answer 5

Between subject variability divided into;
Groups
Subjects within groups (error term)

Within subject variability divided into;
TIme
TIme x group
Time x subject (error term)