Table 4 Likelihood ratio test between two nested cumulative ordinal logistic regression models for DIF examination
From: Validation of the food access survey tool to assess household food insecurity in rural Bangladesh
|  |  | Literacy (literate vs illiterate) | Age (≥30 y vs <30 y) | ||||||
|---|---|---|---|---|---|---|---|---|---|
Model 1a | Model 2b | −2D | p-value | Effect sizec | Model 2b | −2D | p-value | Effect sizec | |
Item 1 | –5515.64 | –5496.01 | 39.27 | <0.001 | 0.18 % | –5508.65 | 13.98 | <0.001 | 0.05 % |
Item 2 | –3043.47 | –3015.94 | 55.07 | <0.001 | 0.60 % | –3040.42 | 6.10 | 0.05 | 0.00 % |
Item 3 | –3359.23 | –3348.06 | 22.34 | <0.001 | 0.16 % | –3348.15 | 22.16 | <0.001 | 0.20 % |
Item 4 | –6012.05 | –5991.26 | 41.56 | <0.001 | 0.14 % | –6009.88 | 4.32 | 0.12 | 0.00 % |
Item 5 | –3244.66 | –3220.84 | 47.64 | <0.001 | 0.33 % | –3240.99 | 7.34 | 0.03 | 0.03 % |
Item 6 | –4281.38 | –4256.09 | 50.59 | <0.001 | 0.29 % | –4268.56 | 25.64 | <0.001 | 0.14 % |
Item 7 | –10278.28 | –10184.37 | 187.82 | <0.001 | 0.57 % | –10245.95 | 64.66 | <0.001 | 0.18 % |
Item 8 | –6046.82 | –5989.04 | 115.54 | <0.001 | 0.68 % | –6035.00 | 23.64 | <0.001 | 0.14 % |
Item 9 | –6296.15 | –6262.50 | 67.29 | <0.001 | 0.32 % | –6286.59 | 19.11 | <0.001 | 0.10 % |
|  |  | Land ownership (Yes vs No) | Household size (≥4 vs <4) | ||||||
Model 1a | Model 2b | −2D | p-value | Effect sizec | Model 2b | −2D | p-value | Effect sizec | |
Item 1 | –5515.64 | –5216.83 | 597.62 | <0.001 | 0.23 % | –5502.33 | 26.62 | <0.001 | 0.09 % |
Item 2 | –3043.47 | –2904.33 | 278.28 | <0.001 | 0.30 % | –3031.35 | 24.24 | <0.001 | 0.22 % |
Item 3 | –3359.23 | –3218.90 | 280.65 | <0.001 | –0.22 % | –3349.25 | 19.95 | <0.001 | 0.14 % |
Item 4 | –6012.05 | –5714.07 | 595.96 | <0.001 | 0.01 % | –5993.87 | 36.35 | <0.001 | 0.11 % |
Item 5 | –3244.66 | –3137.21 | 214.91 | <0.001 | –0.46 % | –3235.91 | 17.50 | <0.001 | 0.08 % |
Item 6 | –4281.38 | –4103.63 | 355.50 | <0.001 | –0.21 % | –4269.68 | 23.41 | <0.001 | 0.10 % |
Item 7 | –10278.28 | –9533.13 | 1490.29 | <0.001 | 0.89 % | –10206.68 | 143.19 | <0.001 | 0.40 % |
Item 8 | –6046.82 | –5735.46 | 622.72 | <0.001 | 0.09 % | –6033.31 | 27.00 | <0.001 | 0.10 % |
Item 9 | –6296.15 | –5888.44 | 815.41 | <0.001 | 0.17 % | –6282.91 | 26.48 | <0.001 | 0.04 % |