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Reliability of elements based on Cronbach’s alpha.
| Elements | Mean | Cronbach’s alpha |
|---|---|---|
| ABU | 4.50 | 0.919 |
| CCD | 4.28 | 0.910 |
| IC | 4.41 | 0.916 |
| PE | 3.41 | 0.936 |
| QES | 4.55 | 0.917 |
| PU | 4.30 | 0.911 |
| PEU | 4.40 | 0.915 |
| SPD | 4.26 | 0.911 |
| ATU | 4.50 | 0.911 |
| BIU | 4.35 | 0.910 |
| AU | 4.41 | 0.924 |
| AP | 4.35 | 0.915 |
