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Table 1 Item Analysis Results

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

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*