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Welcome
 Welcome to Inferential Statistics with R
 Introduction to the Dataset

ttests
 Independent ttest
 Dependent ttest

OneWay ANOVA
 OneWay ANOVA
 Post Hoc Comparisons
 Other ANOVA Tests

ChiSquare
 ChiSquare
 Dealing with Small Cells

Correlation
 Correlation

Regression
 Linear Regression
 Multiple Regression
 Hierarchical Regression

Reliability
 Reliability

Reporting Results
 Extracting Output
 Reporting Results

Testing Assumptions
 Testing Assumptions
 Testing for Normality
 Testing for Homogeneity of Variance
 Violated Assumptions
Inferential Statistics with R
Post Hoc Comparisons
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This lesson is called Post Hoc Comparisons, part of the Inferential Statistics with R course. This lesson is called Post Hoc Comparisons, part of the Inferential Statistics with R course.
Transcript
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Your Turn
Perform oneway ANOVA to test whether there is a difference in
hs_gpa
bygrade_class
. Is there a difference? If so, perform a Tukey’s HSD to test where the differences are. Describe the differences.Perform oneway ANOVA to test whether there is a difference in
weight_2
bygender
. Is there a difference? If so, perform a Tukey’s HSD to test where the differences are. Describe the differences.
Learn More
Read more about the tukey_hsd() function in the rstatix package. The rstatix package also has functions for Dunn's test of multiple comparisons using dunn_test(), Games Howell posthoc tests using games_howell_test(), and pairwise comparisons of estimated marginal means using emmeans_test().
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