T-Test

Independent Samples Test

Test

N

Mean

Levene’s Test for Quality of Variances

T-test for Equality of Means

f

Sig.

t

df

Sig.

(2-tailed)

confidence

Pre

15

9.86

EVA

1.735

0.199

11.98

28

0.000

Post

15

71.40

EVNA

11.98

25.64

0.000

pronunciation

Pre

15

8.20

EVA

0.098

0.757

19.22

28

0.000

Post

15

81.20

EVNA

19.22

27.28

0.000

grammar

Pre

15

2.73

EVA

8.417

0.007

8.17

28

0.000

Post

15

41.39

EVNA

8.17

16.01

0.000

understanding

Pre

15

7.73

EVA

1.718

0.201

10.67

28

0.000

Post

15

55.66

EVNA

10.67

21.68

0.000