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Table 9 Differential item functioning through CDM

From: Validity of the listening module of international English language testing system: multiple sources of evidence

Items Chi-square Df P DIF/non-DIF CDM P-Holm DIF/non-DIF Holm UA Effect size
1 2.56 2 0.27 Non-DIF 1.00 Non-DIF 0.07 Moderate
2 17.98 2 0.00 DIF 0.00 DIF 0.14 Large
3 2.53 2 0.28 Non-DIF 1.00 Non-DIF 0.08 Moderate
4 9.03 2 0.01 DIF 0.33 Non-DIF 0.12 Large
5 5.67 2 0.05 Non-DIF 1.00 Non-DIF 0.09 Large
6 5.20 2 0.07 Non-DIF 1.00 Non-DIF 0.07 Moderate
7 5.16 2 0.07 Non-DIF 1.00 Non-DIF 0.08 Moderate
8 22.64 2 0.00 DIF 0.00 DIF 0.17 Large
9 9.84 2 0.00 DIF 0.24 Non-DIF 0.06 Moderate
10 21.78 2 0.00 DIF 0.00 DIF 0.17 Large
11 5.50 2 0.06 Non-DIF 1.00 Non-DIF 0.10 Large
12 1.55 2 0.46 Non-DIF 1.00 Non-DIF 0.05 Weak
13 2.50 2 0.28 Non-DIF 1.00 Non-DIF 0.08 Moderate
14 37.75 2 0.00 DIF 0.00 DIF 0.11 Large
15 0.15 2 0.92 Non-DIF 1.00 Non-DIF 0.06 Moderate
16 0.36 2 0.83 Non-DIF 1.00 Non-DIF 0.01 Weak
17 4.85 2 0.08 Non-DIF 1.00 Non-DIF 0.07 Moderate
18 18.64 2 0.00 DIF 0.00 DIF 0.10 Large
19 1.27 2 0.52 Non-DIF 1.00 Non-DIF 0.05 Weak
20 16.21 2 0.00 DIF 0.01 DIF 0.14 Large
21 7.00 2 0.03 DIF 0.87 Non-DIF 0.10 Large
22 2.26 2 0.32 Non-DIF 1.00 Non-DIF 0.06 Moderate
23 0.09 2 0.95 Non-DIF 1.00 Non-DIF 0.01 Weak
24 2.01 2 0.36 Non-DIF 1.00 Non-DIF 0.06 Moderate
25 1.34 2 0.51 Non-DIF 1.00 Non-DIF 0.01 Weak
26 9.44 2 0.00 DIF 0.28 Non-DIF 0.09 Large
27 1.68 2 0.43 Non-DIF 1.00 Non-DIF 0.01 Weak
28 3.22 2 0.19 Non-DIF 1.00 Non-DIF 0.06 Moderate
29 0.68 2 0.70 Non-DIF 1.00 Non-DIF 0.03 Weak
30 5.78 2 0.05 Non-DIF 1.00 Non-DIF 0.10 Large
31 5.96 2 0.05 Non-DIF 1.00 Non-DIF 0.08 Moderate
32 0.06 2 0.96 Non-DIF 1.00 Non-DIF 0.00 Weak
33 7.44 2 0.02 DIF 0.72 Non-DIF 0.07 Moderate
34 3.32 2 0.18 Non-DIF 1.00 Non-DIF 0.06 Moderate
35 0.06 2 0.96 Non-DIF 1.00 Non-DIF 0.00 Weak
36 11.13 2 0.00 DIF 0.12 Non-DIF 0.1322 Large
37 2.92 2 0.23 Non-DIF 1.00 Non-DIF 0.0547 Weak
38 4.62 2 0.09 Non-DIF 1.00 Non-DIF 0.0792 Moderate
39 4.44 2 0.10 Non-DIF 1.00 Non-DIF 0.0724 Moderate
40 0.40 2 0.81 Non-DIF 1.00 Non-DIF 0.0176 Weak