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Table 1 Item statistics results of the draft Breastfeeding Competency Scale (44 items, n = 565)

From: Breastfeeding competency scale (BCS); development and validation of an evaluation instrument on breastfeeding competency in third trimester pregnancy

Item

Coefficient of Variation

critical ration t

Cronbach’s alpha if item deleted

correlation coefficient

Mean (SD)

1

3.773 (0.935)

16.576**

0.968

0.642**

2

4.004 (0.936)

18.361**

0.968

0.673**

3

3.968 (1.021)

23.117**

0.967

0.769**

4

4.027 (0.933)

14.742**

0.968

0.630**

5

3.641 (1.021)

15.252**

0.968

0.621**

6

3.030 (1.118)

−0.244

0.971

−0.057

7

3.781 (1.029)

7.722**

0.969

0.366**

8

3.581 (1.070)

21.340**

0.968

0.728**

9

4.520 (0.757)

8.124**

0.969

0.388**

10

3.501 (0.948)

20.439**

0.967

0.761**

11

3.481 (0.916)

21.720**

0.967

0.790**

12

3.738 (1.031)

24.655**

0.967

0.778**

13

3.729 (1.026)

23.030**

0.967

0.766**

14

3.855 (1.035)

21.554**

0.968

0.741**

15

3.991 (0.894)

17.734**

0.968

0.727**

16

3.807 (0.899)

20.049**

0.968

0.751**

17

3.480 (0.996)

25.485**

0.967

0.805**

18

4.297 (0.705)

13.685**

0.968

0.553**

19

3.843 (0.979)

17.867**

0.968

0.697**

20

3.255 (0.941)

12.033**

0.968

0.570**

21

3.292 (0.959)

20.256**

0.967

0.792**

22

3.818 (0.834)

19.796**

0.968

0.729**

23

3.478 (0.933)

20.321**

0.967

0.761**

24

3.377 (0.944)

18.901**

0.968

0.728**

25

3.662 (0.931)

21.979**

0.968

0.748**

26

3.524 (0.997)

20.409**

0.968

0.739**

27

3.020 (0.961)

14.615**

0.968

0.649**

28

3.304 (0.964)

19.381**

0.968

0.726**

29

3.432 (1.023)

19.831**

0.968

0.740**

30

3.542 (0.953)

19.284**

0.968

0.710**

31

3.363 (1.013)

15.592**

0.968

0.635**

32

2.989 (1.050)

8.153**

0.969

0.442**

33

3.570 (0.995)

19.029**

0.968

0.716**

34

3.901 (0.913)

20.069**

0.968

0.745**

35

3.805 (0.872)

24.512**

0.967

0.788**

36

4.119 (0.764)

17.073**

0.968

0.662**

37

3.795 (0.979)

22.638**

0.967

0.754**

38

3.361 (1.052)

13.999**

0.968

0.606**

39

4.108 (0.795)

15.530**

0.968

0.638**

40

4.243 (0.805)

12.757**

0.968

0.580**

41

3.936 (1.012)

11.438**

0.969

0.492**

42

4.331 (0.764)

12.409**

0.968

0.510**

43

3.300 (1.021)

20.912**

0.967

0.775**

44

4.205 (0.853)

10.717**

0.969

0.490**

  1. Note.*P < 0.05, **P < 0.001
  2. SD Standard Deviation