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

Bormanaki, Hamidreza Babaee; Ajideh, Parviz

doi:10.1186/s40468-022-00185-2

Language Testing in Asia

Table 19 Results of descriptive statistics analysis and Rasch measurement (IUUESEE 2018)

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

Descriptive statistics						Rasch measurement
Item	M	SD	Skewness	Kurtosis	Measure	Infit MNSQ	Outfit MNSQ	PT-Measures	Total scores
1	0.59	0.49	−0.37	−1.85	−0.76	0.92	0.89	0.47	1406
2	0.69	0.46	−0.82	−1.32	−1.32	0.91	0.87	0.46	2013
3	0.53	0.49	−0.15	−1.97	−0.56	0.88	0.84	0.52	1340
4	0.35	0.47	0.60	−1.63	0.37	0.98	0.98	0.41	930
5	0.21	0.41	1.35	−0.15	1.21	0.97	1.12	0.37	437
6	0.55	0.49	−0.20	−1.96	−0.42	0.91	0.88	0.51	664
7	0.37	0.48	0.49	−1.7	0.38	1.06	1.10	0.37	516
8	0.50	0.50	−0.02	−2.00	−0.36	0.98	0.96	0.42	1212
9	0.36	0.48	0.55	−1.69	0.38	0.96	0.99	0.44	709
10	0.52	0.49	−0.11	−1.98	−0.50	0.91	0.88	0.50	1126
11	0.91	0.28	−2.91	6.49	−3.10	0.94	0.67	0.36	3200
12	0.84	0.36	−1.90	1.62	−2.21	0.90	0.75	0.41	1966
13	0.77	0.41	−1.30	−0.30	−1.71	0.94	0.92	0.39	2089
14	0.67	0.46	−0.74	−1.44	−1.15	0.90	0.85	0.47	1510
15	0.54	0.49	−0.19	−1.96	−0.42	1.01	1.03	0.39	940
16	0.60	0.48	−0.44	−1.80	−0.69	0.94	0.93	0.45	904
17	0.79	0.40	−1.43	0.05	−1.82	0.86	0.72	0.47	2051
18	0.61	0.48	−0.46	−1.78	−0.75	0.95	0.95	0.42	1269
19	0.60	0.48	−0.42	−1.82	−0.82	0.96	0.92	0.43	1628
20	0.25	0.43	1.09	−0.79	0.99	1.07	1.16	0.32	438
21	0.16	0.37	1.76	1.11	1.61	0.94	1.17	0.38	197
22	0.38	0.48	0.49	−1.76	0.52	0.94	0.99	0.45	494
23	0.10	0.31	2.50	4.26	2.15	1.07	1.80	0.15	183
24	0.34	0.47	0.65	−1.56	0.47	0.98	1.03	0.41	707
25	0.18	0.38	1.66	0.76	1.48	0.92	1.05	0.39	399
26	0.51	0.50	−0.04	−2.00	−0.16	0.89	0.87	0.51	749
27	0.64	0.47	−0.59	−1.64	−0.79	1.18	1.79	0.19	627
28	0.46	0.49	0.12	−1.98	0.15	1.01	1.01	0.43	449
29	0.57	0.49	−0.30	−1.90	−0.45	0.89	0.87	0.51	689
30	0.40	0.49	0.38	−1.85	0.49	1.05	1.11	0.41	279
31	0.16	0.37	1.78	1.17	1.46	1.04	1.28	0.26	429
32	0.36	0.48	0.54	−1.70	0.30	1.00	1.02	0.40	720
33	0.30	0.46	0.83	−1.29	0.65	0.93	0.98	0.45	473
34	0.50	0.50	−0.03	−2.00	−0.46	1.30	1.45	0.07	1023
35	0.28	0.45	0.92	−1.14	0.65	1.07	1.06	0.32	476
36	0.49	0.50	0.03	−2.00	−0.24	0.97	0.95	0.43	835
37	0.62	0.48	−0.52	−1.72	−0.86	0.89	0.86	0.49	826
38	0.29	0.45	0.87	−1.23	0.57	1.30	1.50	0.11	294
39	0.24	0.43	1.16	−0.65	1.06	1.28	1.61	0.07	278
40	0.71	0.45	−0.92	−1.13	−1.27	0.95	0.95	0.40	1415
41	0.17	0.37	1.72	0.96	1.63	1.05	1.38	0.26	232
42	0.70	0.45	−0.90	−1.17	−1.19	0.96	1.18	0.36	1143
43	0.61	0.48	−0.47	−1.77	−0.64	0.85	0.80	0.53	755
44	0.40	0.49	0.38	−1.85	0.31	1.24	1.32	0.15	634
45	0.43	0.49	0.25	−1.93	0.18	1.15	1.19	0.28	556
46	0.44	0.49	0.21	−1.96	0.29	1.03	1.06	0.42	372
47	0.55	0.49	−0.21	−1.95	−0.43	1.04	1.09	0.36	569
48	0.27	0.44	1.03	−0.92	0.96	1.05	1.20	0.41	120
49	0.56	0.49	−0.27	−1.92	−0.33	0.93	0.90	0.49	432
50	0.16	0.37	1.79	1.21	1.76	1.13	1.96	0.16	182
51	0.33	0.47	0.69	−1.51	0.80	1.06	1.1	0.33	375
52	0.21	0.40	1.40	−0.01	1.54	1.20	1.61	0.17	183
53	0.62	0.48	−0.50	−1.74	−0.70	0.92	0.90	0.46	791
54	0.65	0.47	−0.63	−1.60	−0.77	0.88	0.85	0.51	490
55	0.54	0.49	−0.19	−1.96	−0.24	0.87	0.84	0.54	490
56	0.28	0.44	0.97	−1.04	0.98	0.97	0.96	0.43	280
57	0.47	0.49	0.096	−1.99	−0.06	1.11	1.16	0.32	610
58	0.56	0.49	−0.27	−1.92	−0.35	1.05	1.12	0.35	591
59	0.60	0.48	−0.44	−1.80	−0.68	0.99	0.99	0.39	994
60	0.50	0.50	−0.005	−2.00	−0.11	1.03	1.04	0.39	542
61	0.52	0.49	−0.12	−1.99	−0.48	1.19	1.41	0.28	301
62	0.36	0.48	0.55	−1.70	0.40	1.03	1.03	0.47	135
63	0.39	0.48	0.42	−1.82	0.33	1.02	1.06	0.45	215
64	0.50	0.50	−0.003	−2.00	−0.11	0.97	0.95	0.48	267
65	0.22	0.41	1.32	−0.24	1.31	1.16	1.46	0.33	88
66	0.38	0.48	0.45	−1.80	0.39	1.10	1.16	0.39	202
67	0.36	0.48	0.55	−1.69	0.53	1.12	1.20	0.32	283
68	0.35	0.47	0.59	−1.65	0.63	1.16	1.25	0.26	349
69	0.35	0.47	0.60	−1.63	0.46	0.89	0.87	0.52	384
70	0.57	0.49	−0.30	−1.91	−0.50	0.93	1.06	0.50	356

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