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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