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3 Cards in this Set
- Front
- Back
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What is ANOVA? How is it similar to T tests? |
-performs 1 test (to see if the groups are different) across all groups, keeping alpha at .05 -both measure the difference between means and the amount of variability in each group |
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Explain the Family Wise Error Rate |
-When you run multiple T tests with an alpha of .05, you increase the probability of making a type 1 error. -alpha increases with each comparison (family wise error rate) |
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What does ANOVA do/consider? |
1) Variability across all groups -individual scores relative to overall mean (SStotal) 2) Variability between groups -mean of each group relative to overall mean of all groups 3) Variability within each group -SSerror |
