Table 2.

Item analysis (N = 170).

Item	Extreme group comparison	Item-total correlation	Cronbach’s α if item deleted	McDonald’s omega if the item is deleted	Numbers of substandard indicators	Note
	Criterial ratio
1	6.497**	0.563**	0.916	0.916	0	Retained
2	7.612**	0.542**	0.916	0.916	0	Retained
3	3.767**	0.283 **	0.922	0.923	1	Retained
4	10.576**	0.701**	0.912	0.912	0	Retained
5	11.907**	0.705**	0.912	0.912	0	Retained
6	8.846**	0.629**	0.914	0.915	0	Retained
7	12.077**	0.761**	0.911	0.911	0	Retained
8	7.515**	0.584**	0.916	0.916	0	Retained
9	7.169**	0.600**	0.915	0.915	0	Retained
10	7.436**	0.574**	0.915	0.915	0	Retained
11	11.871**	0.745**	0.910	0.911	0	Retained
12	11.019**	0.716**	0.911	0.911	0	Retained
13	8.717**	0.567**	0.914	0.915	0	Retained
14	10.548**	0.632**	0.914	0.915	0	Retained
15	10.382**	0.632**	0.914	0.914	0	Retained
16	11.551**	0.686**	0.912	0.913	0	Retained
17	12.953**	0.707**	0.912	0.912	0	Retained

Bold values is the character that mean the indicator is substandard. C-FFCS, Chinese version of the fathers’ fear of childbirth scale. ^**p < 0.01.