Factorial designs Flashcards
1
Q
In a factorial design, two or more factors are ____?
A
Crossed
2
Q
def. simple effect
A
The effect of one factor at one level of the other factor
3
Q
What is a major practical advantage of factorial designs?
A
Fewer participants needed for equivalent power
4
Q
Interactions or lack of can tell us … (2)
A
- Generalisability across levels of another factor
2. Dependence of a focal effect on the level of a moderator
5
Q
What typically goes on the x axis in two way design? (2)
A
The focal IV or the IV with the most levels
6
Q
Graph lines cross =
A
disordinal
7
Q
Does a main effect tell you anything about whether there is an interaction, or vice versa?
A
No they can occur in any combination
8
Q
What does it mean when an interaction is significant and qualifies a main effect?
A
The main effects will require reinterpretation
