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Table 5 DIF analysis

From: Sexuality and contraceptive knowledge in university students: instrument development and psychometric analysis using item response theory

Item Gender Academic degree Formation
4 χ2 = 0.91; P = 0.34 χ2 = 0.02; P = 0.88 χ2 = 0.12; P = 0.73
8 χ2 = 0.44; P = 0.51 χ2 = 1.12; P = 0.29 χ2 = 0.25; P = 0.62
13 χ2 = 4.35; P = 0.04 χ2 = 1.12; P = 0.29 χ2 = 0.84; P = 0.36
15 χ2 = 0.11; P = 0.73 χ2 = 4.78; P = 0.03 χ2 = 2.64; P = 0.10
16 χ2 = 1.89; P = 0.17 χ2 = 0.03; P = 0.86 χ2 = 3.11; P = 0.08
19 χ2 = 2.26; P = 0.13 χ2 = 1.27; P = 0.26 χ2 = 0.41; P = 0.52
26 χ2 = 1.79; P = 0.18 χ2 = 0.73; P = 0.39 χ2 = 3.12; P = 0.08
27 χ2 = 3.17; P = 0.08 χ2 = 5.67; P = 0.02 χ2 = 1.09; P = 0.30
28 χ2 = 0.83; P = 0.36 χ2 = 5.41; P = 0.02 χ2 = 0.00; P = 1
29 χ2 = 0.02; P = 0.90 χ2 = 1.20; P = 0.27 χ2 = 2.00; P = 0.16
30 χ2 = 7.11; P = 0.01 χ2 = 0.25; P = 0.62 χ2 = 0.82; P = 0.37
31 χ2 = 7.27; P = 0.01 χ2 = 0.04; P = 0.84 χ2 = 0.24; P = 0.63
32 χ2 = 0.66; P = 0.42 χ2 = 1.93; P = 0.16 χ2 = 5.07; P = 0.02
33 χ2 = 2.02; P = 0.16 χ2 = 0.45; P = 0.50 χ2 = 0.72 P = 0.40
34 χ2 = 1.51; P = 0.22 χ2 = 3.67; P = 0.06 χ2 = 2.85; P = 0.09