L7 - One - way ANOVA

Question 1

When do you sue a One-way ANOVA?

Answer 1

When examining differences between 3 or more levels of an IV

Question 2

How does a one-way ANOVA work?

Answer 2

Compares the variance between groups with the variance within groups using the F-ratio

Question 3

What are the assumptions for a one-way ANOVA?

Answer 3

Independence of observations –> no relationship between observations within or between groups

Homogeneity of Variance –> variances across groups should be similar
Use Levene’s test to check

Normal distribution –> the DV should be normally distributed within each group