Table 1.

Mean values of CVR, EAP, as well as face validity consisting of difficulty, irrelevancy and ambiguity in case of validation of GSAS items

Item number	Items	CVR	EAP mean value of judjment	Difficulty	Irrelevancy	Ambiguity
1	Surrogacy is a good way to help infertile couples have a child with their own genetic	80	1.9	100	100	100
	characteristics
2	Surrogacy reduces psychological tensions in infertile couples	60	1.8	95	100	95
3	Surrogacy improves the life satisfaction of infertile couples	80	1.8	97.5	100	100
4	Surrogacy can prevent divorce and strengthen family structure	80	1.9	100	100	100
5	If there is no other infertility treatment op- tion, surrogacy could be the last choice	80	1.9	95	100	95
6	I prefer to be voluntarily childless rather than to accept surrogacy	80	1.9	100	100	97.5
7	Adoption is better than surrogacy	80	1.9	100	100	97.5
8	Surrogacy could be followed by ethical and.social issues	60	1.7	92.5	100	92.5
9	Surrogacy is against religion	80	1.9	95	100	97.5
10	Mainly most traditional societies have negative attitudes toward surrogacy	80	1.8	95	95	95
11	Surrogacy must be hidden from others inorder to prevent society to reject the child	100	1.9	90	92.5	92.5
12	I am not concerned about disclosure of sur- rogacy to friends and relatives	100	2	92.5	92.5	90
13	If mass media promotes public awareness about surrogacy, I will not be concerned about disclosure of the issue to the child and the others	80	1.9	95	95	92.5
14	Children born through surrogacy may have further risk of birth defects than others	60	1.9	97.5	100	97.5
15	Children born through surrogacy may have further risk of psychological problems than others	80	2	100	100	100
16	Disclosure of surrogacy is considered as an inalienable right of the child	80	2	100	100	100
17	Surrogate mother’s identity must be hidden from the child	60	1.9	100	100	100
18	Close relationship of the child and surrogate mother will cause insecurity of parental relationship between commissioning couple and the child	60	1.7	95	92.5	95
19	Disclosure of surrogacy to the child is better to be after his/her adolescence stage	80	1.9	100	100	100
20	Only commissioning couple are truly parents of the child	80	2	100	100	100
21	Surrogate mother’s role is as antenatal nanny	60	1.7	100	100	100
22	It seems that surrogate mother’s intention is to get money rather than to be altruistic	80	1.8	100	100	100
23	Surrogate mother might be careless about the child during pregnancy	80	1.9	100	95	100
24	Emotional bonding may cause surrogate mother to avoid relinquishment of the child	60	1.9	100	95	100
25	I prefer involving an unfamiliar surrogate mother	100	2	100	100	100
26	There is no need to maintain contact with surrogate mother after delivery	100	2	100	100	100
27	If my physician recommends to get a surrogate, I will use this treatment	100	2	100	100	100
28	If I know that one of my relatives or friends decide to be a surrogate mother, I will support them	100	2	100	100	100
29	In case of use of surrogacy, I will disclose the truth to my child in future	60	1.7	100	100	100
30	After relinquishment of the baby, facing the surrogate mother never make me uncomfortable	80	1.7	100	10	100
	Total scale	73	1.8	98	98	98

CVR; Content validity ratio and EAP; Expert advisory panel.