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Table 4 Item level CVI (I-CVI) and ADM index values for IDUQOL measure and manual elements

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

IDUQOL Content Validity Questionnaire Itema I-CVI ADM Index
Clarity of Title 0.83 .67
Clarity of Intended Population 1.00 .00
Administration Procedure – Introduction 1.00 .28
Administration Procedure – Respondent Selects Life Areas 1.00 .44
Administration Procedure – Respondent Rates Importance 1.00 .00
Administration Procedure – Respondent Rates Satisfaction 1.00 .00
Response Format – Easy for Respondent to Use Chips 0.83 .67
Response Format – Easy for Respondent to Use Smiley Faces 0.83 .67
Scoring Procedure – Relative Importance Score 1.00 .44
Scoring Procedure – Importance × Satisfaction Score 1.00 .44
Scoring Procedure – Obtain Summed Score 0.83 .67
Example – Relative Importance Score 1.00 .00
Example – Importance × Satisfaction Score 1.00 .00
Example – Completed Sample Record Form 1.00 .00
Ease of the Record Form to Use 1.00 .28
  1. a Ratings were made on a 4-point scale.
  2. Note. I-CVI: 1.00 = endorsement by all six subject matter experts (SMEs); 0.83 = endorsement by five of six SMEs. ADM Index: with a 4-point scale, acceptable values are .69 or less and statistically significant values are .44 or less. Values that are acceptable, but not statistically significant, are bolded.