. Author manuscript; available in PMC: 2017 Jun 13.

Published in final edited form as: Assessment. 2015 Aug 17;23(6):758–768. doi: 10.1177/1073191115599639

Table 2.

Free Baseline DIF Tests for Race/Ethnicity.

Model	−2 log likelihood	AIC	G²	df	G² difference from baseline	df Difference from baseline	G² difference p value
Baseline	399,235	399,511	11363.25	15,486	—	—	—
Item 1 (nervous)	399,454	399,690	11398.35	15,506	35.1	20	.02
Item 2 (hopeless)	399,380	399,617	11387.38	15,506	24.13	20	.24
Item 3 (restless)	399,677	399,912	11417.17	15,506	53.92	20	.0001
Item 4 (depressed)	399,495	399,731	11432.82	15,506	69.57	20	<.0001
Item 5 (everything an effort)	399,529	399,765	11426.58	15,506	63.33	20	<.0001

Note. DIF = differential item functioning; AIC = Akaike information criterion; df = degrees of freedom. Item 6 (worthless) was used as a reference item.