Week 5

Question 1

What does repeated measures ANOVA measure ?

Answer 1

It can test within-group (dependent) samples
* same group of people goes through multiple treatment conditions

Question 2

What is the F-ratio for repeatted measures ANOVA ?

Answer 2

F = Between condition variance/ within group variance - inherent variance

Question 3

What are the assumptions for repeated measures ANOVA ?

Answer 3

• The data (DV) are on an interval or ratio scale
• The underlying distribution is normally distributed
• The variance among the groups being compared are homogeneous (homogenerity of variance)
• The different treatment conditions are correlated (same or matched)