Table 2.

Face validity index based on the rating of the items’ clarity and comprehensibility by 10 target users. The face validity index average was 0.94.

Item No	U1a	U2	U3	U4	U5	U6	U7	U8	U9	U10	I-FVIb
1	4	4	4	4	4	4	3	4	3	2	0.9
2	3	3	4	4	3	2	4	4	3	4	0.9
3	4	4	4	4	4	4	4	4	4	3	1
4	4	3	4	4	4	4	3	4	4	4	1
5	3	2	4	4	4	3	3	3	4	3	0.9
6	3	3	4	4	4	2	4	3	4	3	0.9
7	3	4	4	4	4	4	4	3	2	3	0.9
8	3	4	4	4	4	4	4	3	4	3	1
9	4	4	4	4	4	4	4	4	4	3	1
10	4	4	4	4	4	4	2	3	4	4	0.9

^aU: user.

^bI-FVI: item face validity index.