Table 2

Content Validity Index (for relevance)

Item

Expert

Number in

agreement

Item

CVI

1

2

3

4

5

6

7

8

9

Item #1: Give new knowledge or information

3

4

3

2

1

1

4

3

2

5

0.55

Item #2: Raise awareness

4

4

4

4

3

4

4

4

2

8

0.89

Item #3: Help change your mind

4

4

3

4

4

4

4

4

4

9

1

Item #4: Give new ideas

4

3

3

4

4

4

4

4

4

9

1

Item #5: Help make sense of things

4

4

4

4

4

4

4

3

2

8

0.89

Proportion Relevant

1.00

1.00

1.00

.80

.80

.80

1.00

1.00

.40

Mean I-CVI = .844

Mean I-CVI (item 1 removed) = .920

S-CVI/UA = .40

S-CVI/UA = (item 1 removed) = .40

S-CVI/avg = .87

S-CVI/avg (item 1 removed) = .94

Squires et al. BMC Health Services Research 2011 11:107   doi:10.1186/1472-6963-11-107