Source

SS

Df

MS

F

p

Corrected Model

23581.692

2

7861.898

30.201

0.000

Covariate (Pretest)

19482.417

1

19482.418

74.853

0.000

Group

23325.195

2

11662.098

44.809*

0.000

Error

21865.581

85

261.293

Total

248967.000

91

Corrected Total

45446.272

89