Table 2 Descriptive statistics of each sample

Sample 1

Listening T1

1

5

4.43

.908

1.991

−1.687

Listening T2

1

5

3.56

1.293

−.842

−.444

Listening T3

1

5

3.51

.999

.390

−.889

Listening T4

0

5

2.88

1.316

−.498

−.286

Listening T5

1

5

3.35

1.435

−1.306

−.292

Listening T6

0

5

2.26

1.764

−1.634

−.307

Reading T1

1

5

4.21

1.151

1.899

−1.614

Reading T2

1

5

3.46

1.395

−.208

−.780

Reading T3

1

5

3.15

1.560

−1.064

−.341

Reading T4

0

5

2.81

1.730

−1.140

−.394

Reading T5

1

5

2.40

1.879

−1.657

−.037

Reading T6

1

5

2.10

1.868

−1.216

.45

Sample 2

Listening T1

1

5

4.43

.785

1.462

−1.379

Listening T2

0

5

3.78

1.051

1.398

−.965

Listening T3

1

5

3.98

.812

1.980

−.948

Listening T4

1

5

3.18

1.467

−.845

−.362

Listening T5

1

5

3.40

1.278

−.972

−.248

Listening T6

1

5

3.26

.954

−.644

−.083

Reading T1

1

5

4.30

.808

1.961

−1.404

Reading T2

1

5

3.73

1.205

−.855

−.543

Reading T3

1

5

2.88

1.249

−.907

.066

Reading T4

1

5

2.83

1.209

−.636

.153

Reading T5

0

5

3.19

1.20

.260

−.655

Reading T6

0

5

2.01

1.518

−.894

.382