Item | The first round of investigation (n = 1712) | Item | The second round of investigation (n = 1027) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Critical ratio | Discrete trend | Correlation coefficient | Factor loading | Cronbach’s α coefficient | Retained item | Critical ratio | Discrete trend | Correlation coefficient | Factor loading | Cronbach’s α coefficient | Retained item | ||
1 | 25.115 | 0.925 | 0.611** | 0.611 | 0.985 | √ | 1 | 22.500 | 0.928 | 0.657** | 0.631 | 0.975 | √ |
2 | 27.510 | 0.916 | 0.643** | 0.643 | 0.985 | √ | 2 | 22.587 | 0.932 | 0.681** | 0.677 | 0.975 | √ |
3 | 29.896 | 0.926 | 0.686** | 0.686 | 0.985 | √ | 3 | 26.847 | 0.938 | 0.714** | 0.712 | 0.975 | √ |
4 | 25.832 | 0.882 | 0.623** | 0.623 | 0.985 | √ | 4 | 21.253 | 0.868 | 0.657** | 0.645 | 0.975 | √ |
5 | 32.128 | 0.876 | 0.730** | 0.730 | 0.985 | √ | 5 | 26.471 | 0.869 | 0.726** | 0.723 | 0.975 | √ |
6 | 34.379 | 0.896 | 0.738** | 0.738 | 0.985 | √ | 6 | 27.007 | 0.900 | 0.740** | 0.730 | 0.975 | √ |
7 | 37.160 | 0.947 | 0.757** | 0.757 | 0.985 | √ | 7 | 29.541 | 0.967 | 0.765** | 0.743 | 0.975 | √ |
8 | 33.735 | 0.975 | 0.711** | 0.711 | 0.985 | √ | 8 | 23.262 | 1.034 | 0.661** | 0.672 | 0.975 | √ |
9 | 35.179 | 0.969 | 0.754** | 0.754 | 0.985 | √ | 9 | 27.502 | 1.026 | 0.738** | 0.759 | 0.975 | √ |
10 | 39.807 | 0.963 | 0.786** | 0.786 | 0.985 | √ | 10 | 27.979 | 0.991 | 0.752** | 0.718 | 0.975 | √ |
11 | 26.732 | 1.051 | 0.624** | 0.624 | 0.985 | √ | 11 | 32.277 | 0.968 | 0.814** | 0.757 | 0.974 | √ |
12 | 31.346 | 1.019 | 0.704** | 0.704 | 0.985 | √ | 12 | 32.657 | 0.975 | 0.815** | 0.775 | 0.974 | √ |
13 | 31.358 | 0.977 | 0.736** | 0.736 | 0.985 | √ | 13 | 34.689 | 0.952 | 0.826** | 0.775 | 0.974 | √ |
14 | 27.167 | 0.945 | 0.678** | 0.678 | 0.985 | √ | 14 | 34.981 | 0.965 | 0.823** | 0.747 | 0.974 | √ |
15 | 39.318 | 0.935 | 0.819** | 0.819 | 0.985 | √ | 15 | 35.542 | 0.966 | 0.835** | 0.785 | 0.974 | √ |
16 | 40.326 | 0.944 | 0.816** | 0.816 | 0.985 | √ | 16 | 19.845 | 0.975 | 0.606** | 0.553 | 0.975 | √ |
17 | 39.994 | 0.923 | 0.829** | 0.829 | 0.985 | √ | 17 | 31.575 | 0.958 | 0.828** | 0.773 | 0.974 | √ |
18 | 39.666 | 0.930 | 0.812** | 0.812 | 0.985 | √ | 18 | 32.874 | 0.962 | 0.834** | 0.780 | 0.974 | √ |
19 | 41.176 | 0.950 | 0.823** | 0.823 | 0.985 | √ | 19 | 32.342 | 0.976 | 0.827** | 0.794 | 0.974 | √ |
20 | 28.521 | 0.998 | 0.685** | 0.685 | 0.985 | √ | 20 | 33.956 | 0.991 | 0.824** | 0.740 | 0.974 | √ |
21 | 37.172 | 0.928 | 0.823** | 0.823 | 0.985 | √ | 21 | 18.091 | 0.966 | 0.573** | 0.768 | 0.976 | × |
22 | 39.440 | 0.932 | 0.836** | 0.836 | 0.985 | √ | 22 | 20.595 | 0.976 | 0.616** | 0.796 | 0.975 | √ |
23 | 40.588 | 0.943 | 0.840** | 0.840 | 0.985 | √ | 23 | 28.544 | 1.032 | 0.771** | 0.698 | 0.975 | √ |
24 | 39.414 | 0.953 | 0.837** | 0.837 | 0.985 | √ | 24 | 24.284 | 0.965 | 0.700** | 0.688 | 0.975 | √ |
25 | 38.919 | 0.978 | 0.827** | 0.827 | 0.985 | √ | 25 | 23.079 | 1.002 | 0.677** | 0.743 | 0.975 | √ |
26 | 33.034 | 0.976 | 0.762** | 0.762 | 0.985 | √ | 26 | 30.997 | 1.023 | 0.791** | 0.713 | 0.975 | √ |
27 | 39.152 | 0.950 | 0.838** | 0.838 | 0.985 | √ | 27 | 25.542 | 0.976 | 0.759** | 0.748 | 0.975 | √ |
28 | 23.793 | 1.017 | 0.602** | 0.602 | 0.985 | √ | 28 | 28.501 | 0.953 | 0.783** | 0.776 | 0.975 | √ |
29 | 21.771 | 1.003 | 0.581** | 0.581 | 0.985 | √ | 29 | 29.875 | 0.983 | 0.797** | 0.805 | 0.975 | √ |
30 | 37.353 | 1.004 | 0.789** | 0.789 | 0.985 | √ | 30 | 33.064 | 1.004 | 0.825** | 0.808 | 0.975 | √ |
31 | 38.911 | 0.966 | 0.829** | 0.829 | 0.985 | √ | 31 | 29.222 | 0.974 | 0.795** | 0.835 | 0.975 | √ |
32 | 28.384 | 0.974 | 0.681** | 0.681 | 0.985 | √ | 32 | 25.008 | 0.910 | 0.753** | 0.781 | 0.975 | √ |
33 | 27.842 | 1.004 | 0.679** | 0.679 | 0.985 | √ | 33 | 25.302 | 0.962 | 0.740** | 0.758 | 0.975 | √ |
34 | 35.814 | 1.000 | 0.780** | 0.780 | 0.985 | √ | |||||||
35 | 38.751 | 1.005 | 0.809** | 0.809 | 0.985 | √ | |||||||
36 | 42.283 | 0.985 | 0.837** | 0.837 | 0.985 | √ | |||||||
37 | 39.898 | 0.975 | 0.829** | 0.829 | 0.985 | √ | |||||||
38 | 42.783 | 0.965 | 0.850** | 0.850 | 0.985 | √ | |||||||
39 | 38.527 | 0.980 | 0.826** | 0.826 | 0.985 | √ | |||||||
40 | 41.598 | 0.986 | 0.846** | 0.846 | 0.985 | √ | |||||||
41 | 39.690 | 0.982 | 0.835** | 0.835 | 0.985 | √ | |||||||
42 | 40.084 | 0.982 | 0.838** | 0.838 | 0.985 | √ | |||||||
43 | 34.896 | 0.946 | 0.800** | 0.800 | 0.985 | √ | |||||||
44 | 35.988 | 0.934 | 0.801** | 0.801 | 0.985 | √ | |||||||
45 | 36.986 | 0.957 | 0.809** | 0.809 | 0.985 | √ | |||||||
46 | 39.823 | 0.957 | 0.839** | 0.839 | 0.985 | √ | |||||||
47 | 35.365 | 0.951 | 0.801** | 0.801 | 0.985 | √ | |||||||
48 | 33.058 | 0.908 | 0.770** | 0.770 | 0.985 | √ | |||||||
49 | 32.398 | 0.962 | 0.754** | 0.754 | 0.985 | √ |