Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation
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Cognitive Interviewing (CI) is a technique increasingly used to obtain respondent feedback on potential items during questionnaire development. No standard guidelines exist by which to incorporate CI feedback in deciding to retain, revise, or eliminate potential items. We used CI in developing fatigue items for the National Institutes of Health (NIH) Patient-Reported Outcomes Measurement Information System (PROMIS) Roadmap initiative. Our aims were to describe the CI process, formally evaluate the utility of decisions made on the basis of CI, and offer suggestions for future research. ⋯ CI was useful in developing the PROMIS fatigue items and the methods used to judge CI for the present item set may be useful for future investigations.