Week 1

Question 1

Define a factorial design.

Answer 1

Where the IVs are crossed.

Question 2

What three questions do we ask ourselves in two-way ANOVA?

Answer 2

1. Main effects?
2. Interactions?
3. Simple effects?

Question 3

Explain an interaction.

Answer 3

An interaction is where the effect a factor has on the DV is changed (reversed, strengthened, weakened, eliminated) depending on the levels of another factor.

Question 4

Marginal means = _____________
Cell means = ____________

Answer 4

Main effects.
Simple effects.

Question 5

What is a main effect?

Answer 5

The effect of a factor across the levels of another factor.

Question 6

What is a simple effect?

Answer 6

The effect of a factor between two cell means.

Question 7

Ordinal vs disordinal interaction?

Answer 7

Uncrossed vs crossed.

Question 8

Graphically, how do you identify a main effect?

Answer 8

The heights between two lines are different.

Question 9

Graphically, how do you identify an interaction?

Answer 9

The lines are not parrallel.

Question 10

Graphically, how do you identify simple effects?

Answer 10

The cell means are different.