CHAPTER-20_ANOVA_FINAL.pptx - CHAPTER 20 ANOVA ANALYSIS VARIANCE INTRODUCTION TO OF THE ONE-WAY UNRELATED OR UNCORRELATED ANOVA MARIA CHELA SHOPHIA R

CHAPTER-20_ANOVA_FINAL.pptx - CHAPTER 20 ANOVA ANALYSIS...

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CHAPTER 20: ANOVA ANALYSIS OF VARIANCE INTRODUCTION TO THE ONE-WAY UNRELATED OR UNCORRELATED ANOVA MARIA CHELA SHOPHIA R. MANDARIO
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“MAN IS THE MEASURE OF ALL THINGS .” ~PROTAGORAS
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ANALYSIS OF VARIANCE (ANOVA) used to compare three or more groups in terms of their mean score on dependent variable. The score must be independent (uncorrelated or unrelated) Each respondent contributes just one score to the statistical analysis Let us test the hypotheses about the mean (average) of dependent variable across different groups.
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ANOVA TABLE: GROUP 1 GROUP 2 GROUP 3 GROUP 4 9 3 1 27 14 1 4 24 11 5 2 25 12 5 31
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FEW LIMITATIONS ON THE RESEARCH DESIGNS TO WHICH THIS IS APPLICABLE: 1. It is possible to have any number of groups with the minimum being two. 2. The groups consist of independent samples of scores. 3. The scores (the dependent variable) can be for virtually any variable. The main thing is that they are numerical scores suitable for calculating the mean and variance.
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