ANOVA Post Hoc Test

#1
I performed ANOVA by dividing a group of students by their course grade and comparing the results of a certain score from a survey that was conducted. Each group only has 4 to 5 students. Is there a recommended post hoc test to distinguish which group has a more significant mean?
 

Karabiner

TS Contributor
#2
Do you really expect a non-monotonous relationship between course grade and survey score?
If not, then you should perhaps consider correlation analysis (Pearson or Spearman) .

With kind regards

Karabiner