When is it appropriate to run a post hoc analysis when you are conducting an ANOVA? Group of answer choices When the overall F is significant and you only have 2 levels When the overall F is not significant but you have more than 2 levels. When the overall F is significant and you have more than 2 levels When the overall F is not significant.
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Step 1: Identify the appropriate condition for post hoc tests in ANOVA: you typically perform post hoc analyses only after a significant overall F-test and when there are more than two groups (levels). Show more…
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After conducting a multiple-group design experiment, which of the following would suggest that you should conduct a post hoc test of comparison? The one-way ANOVA has a significant F ratio. The one-way ANOVA has an insignificant F ratio. The assumption of homogeneity is significant. The correlation coefficient is insignificant.
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What is the function of a post-hoc test in ANOVA? Determine the correlation between group means Identify differences between the means when the null has been rejected for the ANOVA. To look for mean differences when the ANOVA could not reject the null. To test for differences in the level of the independent variable at each level of the dependent variable.
Why is it necessary to run a post hoc test after you run a simple ANOVA? Group of answer choices The F-statistic and p-value tells us whether or not there is a difference between means, but it does not tell us where the difference lies. The post hoc test tells us where the difference lies. Post hoc tests are used when the data is not normally distributed Post hoc tests are used when the differences between means is too small to detect with a simple ANOVA Post hoc tests are used when the sample size is small
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