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Table 3 Item statistics

From: Developing a test of L2 Chinese pragmatic comprehension ability

Item

Mean

SD

Corrected item-total correlation

Rasch analysis

Measure

Model S.E.

Infit MNSQ

Infit ZSTD

L1

0.66

0.48

0.34

0.55

0.25

1.17

1.4

L2

0.83

0.38

0.44

− 0.63

0.30

0.96

− 0.1

L3

0.62

0.49

0.49

0.79

0.25

0.95

− 0.4

L4

0.76

0.43

0.42

− 0.06

0.27

1.04

0.3

L5

0.63

0.48

0.62

0.73

0.25

0.78

− 2.0

L6

0.51

0.50

0.32

1.43

0.24

1.17

1.6

L7

0.59

0.49

0.49

0.97

0.24

0.94

− 0.6

L8

0.43

0.50

0.27

1.89

0.24

1.21

2.0

L9

0.76

0.43

0.40

− 0.06

0.27

1.07

0.6

L10

0.66

0.48

0.53

0.55

0.25

0.92

− 0.6

L11

0.16

0.37

0.29

3.72

0.32

0.88

− 0.6

L12

0.77

0.43

0.30

− 0.14

0.28

1.19

1.3

L13

0.68

0.47

0.33

0.42

0.25

1.20

1.6

D1

0.79

0.41

0.43

− 0.29

0.28

1.01

0.1

D2

0.88

0.33

0.33

− 1.15

0.34

1.12

0.6

D3

0.78

0.42

0.57

− 0.21

0.28

0.84

− 1.1

D4

0.71

0.45

0.52

0.22

0.26

0.92

− 0.6

D5

0.88

0.33

0.42

− 1.15

0.34

0.91

− 0.3

D6

0.96

0.20

0.34

− 2.56

0.54

0.93

0.0

D7

0.83

0.38

0.52

− 0.63

0.30

0.88

− 0.7

D8

0.56

0.50

0.52

1.14

0.24

0.94

− 0.5

D9

0.91

0.29

0.50

− 1.55

0.38

0.77

− 0.8

D10

0.90

0.30

0.37

− 1.40

0.37

1.04

0.3

D11

0.91

0.29

0.52

− 1.55

0.38

0.79

− 0.8

D12

0.68

0.47

0.48

0.42

0.25

0.99

0.0

D13

0.81

0.40

0.50

− 0.46

0.29

0.92

− 0.5

N1

0.46

0.50

0.49

1.71

0.24

0.91

− 0.9

N2

0.77

0.43

0.28

− 0.14

0.28

1.22

1.5

N3

0.79

0.41

0.49

− 0.29

0.28

0.95

− 0.3

N4

0.70

0.46

0.30

0.29

0.26

1.24

1.8

N5

0.76

0.43

0.58

− 0.06

0.27

0.84

− 1.1

N6

0.67

0.47

0.56

0.48

0.25

0.89

− 0.9

N7

0.86

0.35

0.59

− 0.93

0.32

0.77

− 1.2

N8

0.75

0.44

0.36

0.01

0.27

1.14

1.0

N9

0.77

0.43

0.33

− 0.14

0.28

1.16

1.1

N10

0.83

0.38

0.57

− 0.63

0.30

0.79

− 1.2

N11

0.79

0.41

0.46

− 0.29

0.28

0.99

0.0

N12

0.60

0.49

0.55

0.91

0.24

0.88

− 1.1

N13

0.93

0.26

0.31

− 1.87

0.43

1.02

0.2

Mean

0.73

–

0.44

0.00

.29

0.98

0.0

SD

–

–

–

1.15

.06

0.14

1.0