Factorial designs (L12) Flashcards
1
Q
What are the basis of an experiment needed for factorial designs?
A
Applied to experimental designs, with different participants in each levels.
2-ways = 2 IVs
3-ways = 3 IVs
3+ IVs = hard to interpret
2
Q
What are the benefits of factorial designs?
A
Allows us to study how variables interact; interaction tells you what moderation looks like.
3
Q
What is the model for factorial designs?
A
y = b0 + b1X1 + b2X2…. + bnXn + error
4
Q
How does factorial designs increase the partitioning of variance?
A
SSt is split into SSr and SSm. Factorial designs further splits SSm into effect of IV1, effect of IV2 and the effect of their interaction.
5
Q
How do you report factorial designs?
A
F(dfrow, dferror) = statistic, p = sig. value
