Table 2.
CDSSa measurement model’s construct reliability and validity.
| Construct and items | Convergent validity | Internal consistency and reliability | ||||||||||
| Factor loading (>0.70) | AVEb (>0.50) | Composite reliability (>0.70) | Cronbach α (>.70) | |||||||||
| Perceived ease of use | 0.588 | 0.847 | .825 | |||||||||
|
|
Learnability | 0.721 | —c | — | — | |||||||
|
|
Operability | 0.738 | — | — | — | |||||||
|
|
User interface | 0.746 | — | — | — | |||||||
|
|
Data entry | 0.856 | — | — | — | |||||||
|
|
Advise to display | 0.836 | — | — | — | |||||||
| System quality | 0.879 | 0.869 | .863 | |||||||||
|
|
Response time | 0.934 | — | — | — | |||||||
| Stability | 0.944 | — | — | — | ||||||||
| Information quality | 0.763 | 0.767 | .699 | |||||||||
|
|
Security | 0.825 | — | — | — | |||||||
| CPd performance | 0.930 | — | — | — | ||||||||
| Decision changes | 0.776 | 0.712 | .712 | |||||||||
|
|
Change in order behavior | 0.856 | — | — | — | |||||||
| Change in CP | 0.856 | — | — | — | ||||||||
| Process changes | 0.650 | 0.824 | .819 | |||||||||
|
|
Effectiveness | 0.773 | — | — | — | |||||||
| Overall usefulness | 0.813 | — | — | — | ||||||||
| Adherence to standards | 0.896 | — | — | — | ||||||||
| User knowledge and skills | 0.762 | — | — | — | ||||||||
| Acceptance | 0.654 | 0.871 | .867 | |||||||||
|
|
Usage | 0.738 | — | — | — | |||||||
| Confirmation of expectations | 0.819 | — | — | — | ||||||||
| Satisfaction with overall quality | 0.806 | — | — | — | ||||||||
| Overall satisfaction | 0.846 | — | — | — | ||||||||
| Intension to use | 0.815 | — | — | — | ||||||||
| Perceived benefits | ||||||||||||
|
|
Constructed based on decision and process changes | — | 0.511 | 0.848 | 0.839 | |||||||
aCDSS: clinical decision support system.
bAVE: average variance extracted.
cNot applicable.
dCP: clinical pathway.