Table 3.
Reliability analysis
| Scale mean if item deleted | Scale variance if item deleted | Corrected item–total correlation | Cronbach’s alpha if item deleted | |
|---|---|---|---|---|
| DMSES1 | 40.48 | 230.419 | 0.458 | 0.928 |
| DMSES2 | 40.33 | 227.771 | 0.591 | 0.926 |
| DMSES3 | 40.46 | 228.846 | 0.602 | 0.926 |
| DMSES4 | 40.09 | 226.658 | 0.613 | 0.925 |
| DMSES5 | 40.04 | 224.749 | 0.647 | 0.925 |
| DMSES6 | 39.91 | 226.134 | 0.517 | 0.927 |
| DMSES7 | 40.28 | 224.467 | 0.580 | 0.926 |
| DMSES8 | 39.85 | 222.417 | 0.572 | 0.926 |
| DMSES9 | 40.22 | 223.080 | 0.732 | 0.923 |
| DMSES10 | 40.24 | 225.444 | 0.708 | 0.924 |
| DMSES11 | 40.05 | 225.188 | 0.590 | 0.926 |
| DMSES12 | 40.12 | 223.296 | 0.639 | 0.925 |
| DMSES13 | 39.72 | 220.848 | 0.649 | 0.924 |
| DMSES14 | 39.80 | 221.019 | 0.677 | 0.924 |
| DMSES15 | 39.86 | 217.242 | 0.745 | 0.922 |
| DMSES16 | 39.76 | 223.182 | 0.627 | 0.925 |
| DMSES17 | 39.40 | 221.171 | 0.618 | 0.925 |
| DMSES18 | 40.25 | 229.879 | 0.473 | 0.928 |
| DMSES19 | 40.76 | 231.849 | 0.584 | 0.926 |
| DMSES20 | 40.41 | 229.031 | 0.562 | 0.926 |
Cronbach’s alpha = 0.929
DMSES Diabetes Management Self-Efficacy Scale