Source of variance

Squares sum

Degrees of freedom

Squares average

Value F

Level of statistical significance

ETA square

The pretest

70.748

1

70.748

1.789

0.188

0.039

Teaching-approach

5730.939

2

2865.469

72.444

0

0.767

Error

1740.377

44

39.554

Total

233814

48

Adjusted total

70.748

47