Week 4 Flashcards
1
Q
What does ANOVA stand for ?
A
Analysis of Variance
2
Q
What is ANOVA ?
A
An inferential parametric statistical test for compring the means of three or more groups
2
Q
What does ANOVA focus on ?
A
on variance; compares the amount of variance caused by the manipulation (IV) vs random error
3
Q
What is One-way ANOVA ?
A
Inferential statistical test for comparing the means of 3 or more groups using a between-subjects design
4
Q
What is between-groups variance ?
A
An estimate of the effect of the independent variable and error variance; individual difference
5
Q
What is within-group variance ?
A
An estimate of the population error variance
6
Q
What are the assumptions of 1-way ANOVA ?
A
- 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 (homogeneity of variance )
