Table 6 Summary of two-way ANOVA for groups and testing sessions (prepositional usages).

From: The effectiveness of unfocused corrective feedback on second language student writers’ acquisition of English article, prepositional and verb tense usages

Source of Variance

SS

df

MS

F

η2

Group (A)

18.16

1.00

18.16

0.11

0.00

Testing Session (B)

1399.86

2.21

634.29

4.80*

0.08

Group * Testing Session (A*B)

1284.42

2.21

581.99

4.41*

0.07

Within Group (Error)

24759.67

176.38

290.80

  

Group Area (Between Subjects)

8731.38

55

158.75

  

Residual

16028.29

121.38

132.05

  

Total

27462.11

181.80

   
  1. *p < 0.05.