—

The proportion of each grade

Excellent

Middling above

Middling

Middling below

Poor

Group A pre-test

5.56

20.37

33.33

24.07

16.67

Group A post-test

6.25

12.50

33.33

27.08

20.83

Group E pre-test

9.68

30.65

41.94

14.52

3.23

Group E post-test

12.07

20.69

36.21

27.59

3.45

Group A&E pre-test

7.76

25.86

37.93

18.97

9.48

Group A&E post-test

9.43

16.98

34.91

27.36

11.32