Injection Drug User Quality of Life Scale (IDUQOL): Findings from a content validation study

Table 3 Scale level CVI (S-CVI/Ave) for elements of the IDUQOL measure and manual

IDUQOL Element	S-CVI/Ave
Appropriateness of IDUQOL Life Areas (20 items)^a	0.97
Clarity of IDUQOL Life Area Names (20 items)^b	0.99
Clarity of IDUQOL Life Area Descriptions (20 items)^b	0.98
Clarity of Title and Target Population (2 items)^b	0.92
Ease of Administration Procedure (4 items)^b	1.00
Ease of Response Formats (2 items)^b	0.83
Ease of Scoring Procedure (3 items)^b	0.94
Helpfulness of Provided Examples (3 items)^b	1.00
Ease of the Record Form to Use (1 item)^b	1.00

^a Ratings were made on a 3-point scale. ^b Ratings were made on a 4-point scale.
Note. Ease of Record Form result is the same as the individual level findings; this element is included here for completeness. For S-CVI/Ave, the minimum acceptable value is .90. A scale level AD_M Index could not be applied here as it requires scales comprised of essentially parallel items.

ISSN: 1477-7525