A series of free Statistics Lectures with lessons, examples & solutions in videos.
This is page twenty-three of the series of free video lessons, “Statistics Lectures”. These lectures covers an introduction to ANOVA - analysis of variance, one-way anova, effect size for one-way anova, post-hoc tests for one-way ANOVA.
ANOVA is a statistical method used to compare the means of two or more groups.
Types of ANOVA:
One factor with at least two levels, levels are independent.
The most common measure of effect size for a One-Way ANOVA is Eta-squared.
Researchers want to test a new anti-anxiety medication. They split participants into three conditions (0mg, 50mg, and 100mg), then ask them to rate their anxiety level on a scale of 1-10. Are there any differences between the three conditions using alpha = 0.05?
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