Table 3 Reliability statistics
|  | Scale mean if item deleted | Scale variance if item deleted | Corrected item–total correlation | Cronbach's alpha if item deleted | ||
|---|---|---|---|---|---|---|
Awareness1 | 14.02 | 12.852 | 0.127 | 0.721 | ||
Awareness2 | 13.71 | 10.314 | 0.651 | 0.460 | ||
Awareness3 | 14.02 | 12.284 | 0.197 | 0.684 | ||
Awareness4 | 13.69 | 10.557 | 0.616 | 0.478 | ||
Awareness5 | 13.56 | 10.996 | 0.533 | 0.516 | ||
Cronbach’s alpha of the first factor | 0.634 | |||||
 Environmental_concern1 | 7.32 | 4.687 | 0.707 | 0.866 | ||
 Environmental_concern2 | 6.94 | 4.748 | 0.768 | 0.804 | ||
 Environmental_concern3 | 6.95 | 4.984 | 0.793 | 0.787 | ||
Cronbach’s alpha of the second factor | 0.871 | |||||
 Innovativeness1 | 6.17 | 2.344 | 0.729 | 0.787 | ||
 Innovativeness2 | 6.11 | 2.031 | 0.740 | 0.770 | ||
 Innovativeness3 | 6.07 | 2.105 | 0.696 | 0.813 | ||
Cronbach’s alpha of the third factor | 0.849 | |||||
 Household_attitude1 | 6.39 | 2.019 | 0.809 | 0.801 | ||
 Household_attitude2 | 6.60 | 2.274 | 0.748 | 0.854 | ||
 Household_attitude3 | 6.53 | 2.357 | 0.764 | 0.841 | ||
Cronbach’s alpha of the fourth factor | 0.882 | |||||
 Government_incentive1 | 11.14 | 4.776 | 0.647 | 0.768 | ||
 Government_incentive2 | 11.06 | 4.491 | 0.633 | 0.773 | ||
 Government_incentive3 | 11.13 | 4.619 | 0.628 | 0.775 | ||
Cronbach’s alpha of the fifth factor | 0.817 | |||||