Table 5 Internal consistency of questionnaire domains
Number of items | Cronbach’s alpha | Cronbach’s alpha based on standardized items | |
|---|---|---|---|
Vulnerability | 7 | .897 | .897 |
Response efficacy | 8 | .891 | .891 |
Self-efficacy | 8 | .847 | .848 |
Past adherence | 8 | .909 | .912 |
Future adherence | 8 | .928 | .932 |