Table 1.

Item analysis (N = 354).

Items	Descriptive statistics		t-test		Correlation analysis (r)
	M	SD	t	p	I-TS	I-T
1	4.97	1.16	13.90	<0.001	0.76***	0.70***
2	5.11	1.05	14.84	<0.001	0.79***	0.73***
3	5.32	1.01	14.88	<0.001	0.76***	0.73***
4	5.18	1.04	15.55	<0.001	0.83***	0.79***
5	4.90	1.13	11.24	<0.001	0.74***	0.66***
6	4.84	1.04	11.65	<0.001	0.80***	0.71***
7	5.17	1.00	12.95	<0.001	0.74***	0.75***
8	5.02	1.05	12.52	<0.001	0.81***	0.73***
9	4.94	1.07	11.52	<0.001	0.72***	0.68***
10	5.06	0.98	11.44	<0.001	0.81***	0.71***

M, mean; SD, standard error; I-T_S is the correlation between an item with subscale score, I-T is the correlation between an item with C-MPFI total scores; ^***p < 0.001.