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Table 4 Test for differential item functioning by ethnicity.

From: Reliability and validity of a short form household food security scale in a Caribbean community

  Afro-Trinidadian Indo-Trinidadian Mixed
Mean threshold 0.773 1.162 1.133
Adjustment 0.000 0.389 0.360
Adjusted threshold estimates from differential item function model
3 'Balanced meal' 0.346 (0.081) -0.010 (0.077) 0.032 (0.073)
2 'Food last' 0.553 (0.075) 0.614 (0.083) 0.471 (0.047)
5 'Skip meal' 0.642 (0.081) 0.743 (0.121) 0.630 (0.058)
8 'How often' 0.879 (0.113) 0.839 (0.144) 0.980 (0.079)
7 'Eat less' 0.730 (0.062) 0.941 (0.171) 1.095 (0.088)
10 'Hungry' 1.486 (0.112) 1.510 (0.166) 1.428(0.072)