Table 1.

Question, mean and universal CVIs calculation summary

	Question CVI	Mean CVI	Universal CVI
Numerator	number of answers "8", "9" or "10"	Summation of all questions' CVIs	Number of questions with CVI >  = 80
Denominator	Total number of answers	Total number of questions	Total number of questions
Example	A question was graded by 3 professionals as "8" and by 2 as "6". This question CVI is 60%	If there are five questions, three of them have a CVI of 80% and two of 100%, the mean CVI is 88%	If there are two questions with CVI >  = 80 and three with CVI < 80. The universal CVI will be 40%