Content validity and inter-rater reliability of the cognitive fluctuation inventory

Mamoru Hashimoto, Yuta Manabe, Etsuro Mori, Nobutsugu Hirono, Kenji Kosaka, Manabu Ikeda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Objective: The Cognitive Fluctuation Inventory CFI was developed to evaluate cognitive fluctuation in patients with dementia with Lewy bodies (DLB). The objective of this study was to assess the content validity and inter-rater reliability of the CFI. Subjects and Methods: Nine specialists in DLB treatment were invited to participate in the survey to assess the content validity of the CFI. They were asked to assess the relevance and comprehensibility of the question items. In the validation study, inter-rater reliability was assessed using the intraclass correlation coefficient (ICC). Results: Regarding content validity, all nine specialists considered the main question and sub-questions to be relevant to cognitive fluctuation in patients with DLB. Eight out of nine specialists considered the CFI to be a comprehensive measure for detecting cognitive fluctuation in patients with DLB. In the analysis, which used data from 29 patients and their caregivers, the ICC of the CFI was 0.746, which suggests good inter-rater reliability. Conclusion: We found that the CFI showed good content validity and inter-rater reliability for evaluating cognitive fluctuation in patients with DLB.

Original languageEnglish
Pages (from-to)175-183
Number of pages9
JournalBrain and Nerve
Volume66
Issue number2
Publication statusPublished - 2014 Feb

Keywords

  • Cognitive fluctuation
  • Content validity
  • Dementia with lewy bodies (DLB)
  • Interrater reliability

ASJC Scopus subject areas

  • Clinical Neurology

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