International Hip Outcome Tool (12-items) as health-related quality-of-life measure in osteoarthritis: validation of Greek version

Journal of Patient-Reported Outcomes

Table 4 Content validity: ratings of iHOT12-Gr items by six experts on a 4-point scale^a

Item	Expert 1	Expert 2	Expert 3	Expert 4	Expert 5	Expert 6	Number of Experts in agreement (items rated 3 or 4)	Item-level Content Validity Index
1	4	4	4	4	4	4	6	1.00
2	4	3	4	4	3	4	6	1.00
3	4	4	4	4	4	4	6	1.00
4	4	4	4	4	4	4	6	1.00
5	3	4	4	4	4	4	6	1.00
6	2	3	4	3	3	4	5	0.83
7	4	4	4	4	4	4	6	1.00
8	4	4	4	4	4	4	6	1.00
9	3	3	4	2	3	4	5	0.83
10	4	4	4	3	4	4	6	1.00
11	4	4	4	3	4	4	6	1.00
12	4	4	4	3	4	4	6	1.00
								^bS-CVI/Ave = 0.97
								^cS-CVI/UA = 0.83

^a4-Point Rating Scale: 1 = not relevant, 2 = somewhat relevant, 3 = quite relevant, 4 = highly relevant
^bAverage scale’s content validity index
^cScale-level content validity index, universal agreement calculation method among experts