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Table 2 Item analysis for Chinese version of the Medication Safety Competence Scale

From: Psychometric evaluation of medication safety competence scale for clinical nurses

Item Item score (SD) Critical ratio Correlation coefficient between item and total score Cronbach’s Alpha if item deleted
1 2.45 (0.92) 21.968 0.631 0.937
2 2.85 (0.82) 13.757 0.501 0.938
3 2.90 (0.85) 26.010 0.696 0.937
4 2.45 (0.91) 25.444 0.677 0.937
5 2.90 (0.80) 19.573 0.587 0.938
6 2.73 (0.87) 14.737 0.506 0.938
7 2.77 (0.85) 20.833 0.640 0.937
8 2.84 (0.86) 20.145 0.608 0.938
9 2.54 (0.92) 24.320 0.668 0.937
10 2.99 (0.78) 16.657 0.525 0.938
11 3.07 (0.77) 17.242 0.515 0.938
12 3.02 (0.73) 17.523 0.550 0.938
13 3.01 (0.76) 19.855 0.568 0.938
14 3.11 (0.81) 13.113 0.443 0.939
15 3.22 (0.77) 13.587 0.455 0.939
16 3.02 (0.75) 21.111 0.576 0.938
17 2.97 (0.77) 15.407 0.476 0.939
18 3.07 (0.89) 21.692 0.656 0.937
19 3.41 (0.85) 16.659 0.556 0.938
20 3.05 (0.92) 21.643 0.658 0.937
21 2.72 (0.89) 18.939 0.581 0.938
22 3.26 (0.98) 13.309 0.475 0.939
23 3.03 (0.97) 12.677 0.455 0.939
24 2.94 (0.82) 22.123 0.634 0.937
25 2.95 (0.78) 21.565 0.633 0.937
26 2.93 (0.83) 24.758 0.679 0.937
27 2.97 (0.78) 22.670 0.661 0.937
28 3.09 (1.11) 11.511 0.479 0.939
29 2.98 (0.87) 19.314 0.582 0.938
30 2.11 (1.01) 23.893 0.701 0.937
31 2.00 (0.93) 14.884 0.573 0.938
32 2.11 (1.05) 21.692 0.691 0.937
33 2.09 (1.05) 24.522 0.722 0.936
34 3.46 (0.80) 12.767 0.451 0.939
35 3.33 (0.86) 9.818 0.434 0.939
36 3.42 (0.78) 11.415 0.495 0.938