Table 2.

Results of the LRT with AOAA and the Item Parameters for the Reference Group of the Incumbents–Applicants Comparison.

		Reference group (applicants)
Item	X 2	a	b 1	b 2	b 3
1	67.7	1.74	−2.31	−1.34	0.34
2	54	1.03	−1.88	−0.82	1.57
3	16.4	1.20	−1.85	−0.81	1.58
4	6.1	0.76	−1.28	−0.12	2.65
5	27.6	1.63	−1.75	−0.81	1.16
6	30.3	1.49	−2.09	−1.27	0.71
7	26.2	1.32	−3.33	−2.45	−0.16
8	29.2	1.52	−3.18	−2.60	−0.67
9	42.1	1.52	−2.25	−1.39	−0.06
10	63.6	1.98	−2.69	−1.77	0.02
11	26.6	1.91	−2.09	−1.19	0.23
12	25.6	1.84	−2.89	−1.88	0.31
14	81.8	0.67	−4.78	−2.70	1.11
15	222.4	0.66	−3.97	−0.83	2.42
16	80.8	0.70	−5.46	−3.33	0.70
17	41.1	1.04	−4.85	−3.98	−0.82
18	35.7	1.36	−3.60	−2.31	−0.06
19	98	0.87	−3.26	−1.12	1.64
20	45.5	1.29	−2.33	−1.18	0.89
21	62.7	1.00	−1.34	−0.06	2.21
22	74.7	1.36	−2.01	−1.03	1.17
23	77.5	1.42	−2.15	−1.10	1.14
24	33.7	0.95	−3.68	−1.97	1.10
25	29.4	0.93	−4.74	−3.59	−0.56
26	41.1	1.78	−3.07	−2.18	−0.25
27	20.6	0.98	−3.86	−2.16	1.67
28	31.7	1.81	−3.03	−1.84	0.24
29	27.1	1.47	−3.62	−2.41	0.47
30	31.6	1.64	−2.45	−1.48	0.56

Note. LRT = likelihood ratio test; AOAA = all other items as anchors.