TABLE 3.

The results of Rasch model in evaluating the psychometric property of cTEQ (n = 648).

	Outfit	Infit	Location	T1	T2	T3	T4	PSI
Item 1	1.03	1.04	1.14	–0.58	–0.86	2.01	3.99	0.83
Item 2	1.13	1.1	1.63	–0.6	0.11	2.46	4.54
Item 3	1.04	1.03	0.75	–1.23	–0.62	1.28	3.57
Item 4	0.96	0.95	0.1	–1.49	–0.39	–0.07	2.37
Item 5	0.84	0.87	0.27	–0.5	–1.5	0.4	2.66
Item 6	0.9	0.89	0.63	–0.25	–1.28	1.04	3.01
Item 7	1.42***	1.36***	1.23	–0.43	–0.03	1.63	3.75
Item 8	0.91	0.93	0.5	–0.71	–1.25	0.85	3.1
Item 9	1.01	0.99	0.31	–1.25	–1.19	0.74	2.94
Item 10	1.27***	1.23**	1.15	–0.56	0.25	1.78	3.13
Item 11	1.18*	1.15	0.95	–1.03	–0.3	1.6	3.54
Item 12	0.78*	0.78*	0.4	–1.18	–0.73	0.36	3.16
Item 13	0.79**	0.79**	0.7	–1.88	–0.43	1.57	3.54
Item 14	1.34***	1.14	0.77	–0.32	0.23	0.24	2.94
Item 15	0.91	0.96	–0.19	–0.83	–0.95	–0.06	1.09
Item 16	0.86	0.86	0.62	–0.84	–1.09	1.37	3.06

PSI, person separation index; T, threshold; T1, threshold between option 1 and 2; T2, threshold between option 2 and 3; T3, threshold between option 3 and 4; T4, threshold between option 4 and 5. *p < 0.05; **p < 0.01; ***p < 0.001.