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. 2020 Jun 28;17(13):4653. doi: 10.3390/ijerph17134653

Table 3.

Internal consistency and content validity results from the final validation study (N = 622).

i-CVI NP-SES’ Alpha if Item Deleted C-ITC M ± SD
  • Item 1. 

    Regularly and thoroughly wash my […].

 1 0.906 0.364 88.90 ± 17.15
  • Item 2. 

    Cover my mouth and nose with a […].

 1 0.905 0.448 92.30 ± 14.15
  • Item 3. 

    Not touch my eyes, nose or mouth […].

 0.93 0.905 0.425 68.30 ± 24.85
  • Item 4. 

    Maintain at least one metre […].

 0.93 0.906 0.397 79.70 ± 22.55
  • Item 5. 

    Avoid getting in contact with large […].

 1 0.907 0.329 90.30 ± 17.94
  • Item 6. 

    Only go outside when permitted […].

 1 0.905 0.423 94.00 ± 14.12
  • Item 7. 

    Identify if I have symptoms […].

 0.93 0.904 0.459 79.60 ± 20.99
  • Item 8. 

    Decide when symptoms require […].

 0.93 0.904 0.480 84.10 ± 20.49
  • Item 9. 

    Decide when my situation requires […].

 0.86 0.903 0.513 84.40 ± 19.66
  • Item 10. 

    Call the correct phone number […].

 1 0.904 0.477 89.20 ± 18.23
  • Item 11. 

    Isolate the person with symptoms […].

 0.86 0.896 0.744 82.20 ± 24.73
  • Item 12. 

    Ensure that the waste from the […].

 0.93 0.897 0.701 77.90 ± 28.03
  • Item 13. 

    Reserve, if possible, a bathroom […].

 0.79 0.908 0.464 72.10 ± 37.32
  • Item 14. 

    Keep the door to the room of the […].

 0.93 0.897 0.718 81.10 ± 27.63
  • Item 15. 

    Limit the movement of the person […].

 0.93 0.895 0.778 81.70 ± 25.46
  • Item 16. 

    Maintain a minimum distance […].

 0.86 0.897 0.719 79.90 ± 26.44
  • Item 17. 

    Ensure that the person with […].

 0.79 0.900 0.626 81.50 ± 27.77
  • Item 18. 

    Carry out an exhaustive daily […].

 1 0.897 0.741 82.90 ± 23.12
  • Item 19. 

    Remove the waste from the person […].

 0.93 0.896 0.743 81.40 ± 24.40

i-CVI = Content Validity Index of each item; C-ITC = Corrected Item-Total Correlation; M = Mean; SD = Standard Deviation.