regression

 

A professor piloted teaching a graduate course using different modes of presentation.  One class used a flipped classroom model, a second class incorporated outside videos/lesson modules, and the third class used traditional lectures.  The professor taught the same course content in one semester, and all students completed the same 10 item quiz.  The professor wanted to know if there was a difference in student performance based on the modes of presentation.  Here is the data output from excel based on the results:

Anova: Single Factor

      

SUMMARY

Groups

Count

Sum

Average

Variance

Class A

11
94

8.545455

1.672727

Class B

13
94

7.230769

2.5

25641

Class C

9
69

7.666667

2.5

             

ANOVA

Source of Variation

SS
df
MS
F

P-value

F crit

Between Groups

10.48019

2

5.240093

2.345087

0.113168

3.31583

Within Groups

67.03497

30

2.234499

      

Total

77.51515

32

The results were significant, (F [2,30] = 2.35, p < .05).  Post-hoc tests should not be conducted.

The results were significant, (F [2,30] = 2.35, p < .01).  Post-hoc tests should be conducted.

The results were not significant, (F [2,30] = 2.35, p > .05).  No post-hoc tests are needed. 

This was not the correct test.