One-way between -subjects analysis ANOVA - questions in one-way between-s ANOVA
3 important questions on One-way between -subjects analysis ANOVA - questions in one-way between-s ANOVA
There are two ways to know the answer of which specific pairs of group means significantly differ, which are they?
Planned contrast and post hoc tests
What is a planned contrast? And what kind of test is this?
Is a set up of limited numbers of differences between means which is set in the beginning. It's an unprotected test that is not protected against inflated risk for type I error, because there are no other corrections except for limiting the numbers of significance tests.
What is a post hoc tests?
To examine many or all the possible comparisons among means. It is a protected test because they use more conservative per comparison criteria for statistical significance, like a comparison alpha.
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