Pregnant women’s attitudes and decision-making regarding prenatal Down syndrome screening and diagnosis: scale development and validation

Table 1 Item Analysis Results

No.	Item	Correlation between items and the total score	Cronbach’s α after deletion (Original α = 0.724)	CR
1	A1	0.291	0.721	3.452*
2	A2	0.120	0.723	1.527
3	A3	0.415	0.720	5.872*
4	A4	0.396	0.720	5.544*
5	A5	0.346	0.720	4.655*
6	A6	0.349	0.719	6.148*
7	A7	0.388	0.720	6.093*
8	A8	0.421	0.720	6.119*
9	A10	0.373	0.720	5.651*
10	A11	0.296	0.720	4.847*
11	A12	0.295	0.720	3.884*
12	A13	0.308	0.720	4.882*
13	A14	0.468	0.717	7.709*
14	A15	0.112	0.724	1.892
15	A16	0.430	0.719	7.086*
16	A17	0.221	0.722	2.712
17	A18	0.452	0.717	7.823*
18	A19	0.270	0.721	3.101*
19	A20	0.342	0.721	3.849*
20	A21	0.467	0.717	7.240*
21	A22	0.458	0.719	6.813*
22	A23	0.532	0.716	9.598*
23	A24	0.520	0.716	8.421*
24	A25	0.499	0.716	7.487*
25	A26	0.533	0.716	8.186*
26	A27	0.556	0.716	8.411*
27	A28	0.270	0.703	7.739*
28	A29	0.345	0.719	4.796*
29	A30	−0.033	0.726	0.348
30	A31	0.343	0.720	4.808*
31	A32	0.243	0.721	4.312*
32	A33	0.236	0.721	3.585*
33	A34	0.370	0.718	5.581*
34	A37	0.388	0.718	4.297*
35	A38	0.265	0.721	4.280*
36	A39	0.338	0.720	5.713*
37	A40	0.498	0.717	7.568*
38	A41	0.488	0.718	6.710*
39	A42	0.542	0.716	10.205*
40	A43	0.491	0.716	8.611*
41	A44	0.533	0.716	9.075*
42	A45	0.452	0.717	6.406*
43	A46	0.444	0.718	6.059*
44	A47	0.281	0.719	5.561*
45	A48	0.248	0.721	4.385*
46	A49	0.310	0.720	5.286*
47	A50	0.119	0.726	0.586
48	A51	0.142	0.725	0.951
49	A52	0.385	0.718	6.415*
50	A53	0.502	0.716	8.285*
51	A54	0.477	0.716	7.899*

ISSN: 1471-2393