The Measurement of Everyday Cognition (ECog): Revisions and Updates

Sarah E Tomaszewski Farias, Alyssa Weakley, Danielle Harvey, Julie Chandler, Olivia Huss, Dan Mungas

Research output: Contribution to journalArticlepeer-review


Introduction: The Everyday Cognition scale (ECog), a measure of everyday functioning developed in 2008, is sensitive to early detection and progression of neurodegenerative disease. The goal was to update ECog item content to ensure relevancy to contemporary older adults from diverse backgrounds. Methods: Participants included 44 culturally diverse older adults (18 with normal cognition, 11 with mild cognitive impairment) and their study partners. Item understandability and relevance was evaluated using iterative interviewing methods that were analyzed using standard qualitative methods. On the basis of this information, items were modified, deleted, or developed as needed. Results: Of the 39 original items, 19 were revised, 3 new items were added (primarily to cover contemporary activities such as the use of technology), and 1 was deleted. The revised version (ECog-II) includes 41 items. Discussion: To ensure strong psychometric properties, and to facilitate harmonization of previously collected data, we preserved well over half of the items. Future work will validate the revised ECog by measuring associations with neuropsychological performance, external measures of disease, and other functional measures. Overall, the revised ECog will continue to be a useful tool for measuring cognitively relevant everyday abilities in clinical settings and intervention clinical trials.

Original languageEnglish (US)
Pages (from-to)258-264
Number of pages7
JournalAlzheimer disease and associated disorders
Issue number3
StatePublished - Jul 2021


  • everyday activities
  • mild cognitive impairment
  • psychometric properties
  • questionnaire

ASJC Scopus subject areas

  • Clinical Psychology
  • Gerontology
  • Geriatrics and Gerontology
  • Psychiatry and Mental health


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