I am validating a questionnaire that I developed which examines the levels of personal disaster preparedness in people with COPD. I am trying to determine what is the number of experts I need when I am examining the content validity of a questionnaire using the content validity index?
Dear Researcher,
I think the issue is not about the number of experts, rather identifying experts who are able to delineate all aspects of a certain variable, and to judge the relatedness of the pre-identified miens.
Good luck with your research
No fewer than the Graces, No more than the Muses.
Seriously, between 3 and 9 ( or 10 ) should suffice.
You might find the following of value:
Research in Nursing & Health, 2006, 29, 489–497
The Content Validity Index: Are You Sure You Know What’s
Being Reported? Critique and Recommendations
Denise F. Polit, 1,2* Cheryl Tatano Beck3**
You can find it on RG
Good luck
Chris
Five expers are considered good for enough control over chance agreement.
More than 10 is not needed
- Badges
- Science topic
- Similar topics
- Mathematics
- Statistics
- Applied Statistics
- Survey Design
- Questionnaire