Language Testing in Asia

Table 7 Results of uniform DIF analysis of items (IUUESEE 2017)

From: Item performance across native language groups on the Iranian National University Entrance English Exam: a nationwide study

*Item*	*Class A*	*DIF*	*DIF SE*	*Class B*	*DIF*	*DIF SE*	*DIF Contrast*	*Welch t*	df	p
8	Luri	0.25	0.21	Persian	0.92	0.10	−0.67	−2.94	182	0.0037
12	Luri	0.19	0.22	Kurdish	0.89	0.19	−0.71	−2.40	230	0.0172
12	Luri	0.19	0.22	Persian	1.16	0.13	−0.97	−3.71	182	0.0003
24	Luri	0.72	0.26	Persian	1.84	0.15	−1.12	−3.71	162	0.0003
35	Luri	0.09	0.19	Persian	−0.55	0.09	0.64	3.01	184	0.0030
60	Luri	−0.55	0.28	Persian	0.16	0.14	−0.71	−2.26	94	0.0261

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