Table 2 Corrected Item-Total Correlation and Cronbach’s Alpha of Items
Domain | Item | Mean (SD) | Corrected Item-Total Correlation | Cronbach’s Alpha if Item Deleted | Cronbach’s Alpha |
|---|---|---|---|---|---|
Perceived susceptibility | Psu1 | 3.86 (1.0) | .660 | .774 | .825 |
Psu2 | 3.97 (.99) | .683 | .768 | ||
Psu3 | 3.75 (1.0) | .651 | .777 | ||
Psu4 | 3.56 (1.0) | .585 | .796 | ||
Psu5 | 3.46 (1.0) | .506 | .819 | ||
Perceived barriers | Pba1 | 3.09 (1.2) | .601 | .617 | .727 |
Pba2 | 3.20 (1.3) | .613 | .607 | ||
Pba3 | 3.22 (1.3) | .470 | .694 | ||
Pba4 | 3.24 (1.2) | .394 | .734 | ||
Perceived severity | Pse1 | 4.34 (.76) | .530 | .688 | .757 |
Pse2 | 4.10 (.81) | .655 | .617 | ||
Pse3 | 3.95 (.83) | .599 | .646 | ||
Pse4 | 3.61 (1.0) | .407 | .777 | ||
Perceived benefits | Pbe1 | 4.16 (.77) | .368 | .664 | .678 |
Pbe2 | 4.34 (.71) | .557 | .547 | ||
Pbe3 | 4.16 (.84) | .460 | .607 | ||
Pbe4 | 4.25 (.77) | .453 | .610 | ||
Cues to action | Cta1 | 3.80 (1.3) | .646 | .815 | .842 |
Cta2 | 3.72 (1.3) | .652 | .815 | ||
Cta3 | 3.69 (1.3) | .678 | .812 | ||
Cta4 | 3.47 (1.4) | .638 | .816 | ||
Cta5 | 3.68 (1.2) | .599 | .822 | ||
Cta6 | 3.69 (1.1) | .595 | .822 | ||
Cta7 | 3.66 (1.1) | .404 | .840 | ||
Cta8 | 3.64 (1.1) | .463 | .835 | ||
Cta9 | 2.95 (1.3) | .331 | .850 | ||
Se1 | 3.51 (1.1) | .578 | .736 | ||
Se2 | 3.42 (1.1) | .574 | .738 | ||
Se3 | 3.80 (.97) | .610 | .722 | ||
Se4 | 3.72 (1.1) | .598 | .724 |