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Table 3 Descriptive statistics: higher-level and lower-level skills in collaborative writing tasks

From: Impacts of computer-assisted diagnostic assessment on sustainability of L2 learners’ collaborative writing improvement and their engagement modes

Task

Statistics

Higher-level skills

Lower-level skills

Total

Organization

Development

Sentence structure

Word choice & grammar

Mechanics

1

Mean

6.11

6.88

19.94

21.97

18.07

14.59

 

Std. deviation

.89

.50

1.10

1.10

.40

.87

2

Mean

6.42

6.64

17.50

18.00

18.09

13.33

 

std. deviation

1.94

.53

.90

.90

.42

.76

3

Mean

5.01

4.81

14.09

16.09

16.70

11.34

 

Std. deviation

.91

.60

1.96

.88

1.54

1.03

4

Mean

4.90

4.67

12.32

15.32

14.30

10.30

 

Std. deviation

1.50

.54

.98

.90

.44

.82

5

Mean

4.87

4.09

10.80

10.72

14.70

9.03

 

Std. deviation

1.20

.40

1.53

.44

.52

.69

6

Mean

4.81

4.83

10.20

9.11

11.20

8.03

 

Std. deviation

1.42

.43

1.40

.70

.90

.94

7

Mean

4.01

4.81

9.09

11.09

11.70

8.14

 

Std. deviation

.91

.60

1.96

.88

1.54

1.03

8

Mean

4.90

4.67

11.32

11.72

8.30

8.18

 

Std. deviation

1.50

.54

.98

.90

.44

.82

9

Mean

4.17

4.09

10.50

9.42

8.70

7.37

 

Std. deviation

1.20

.46

1.53

.44

.52

.69

10

Mean

4.81

4.73

10.20

8.11

8.29

7.22

 

Std. deviation

1.42

.93

1.40

.70

.90

.94