The measurement of everyday cognition (ECog): Scale development and psychometric properties.
Top Cited Papers
- 1 July 2008
- journal article
- Published by American Psychological Association (APA) in Neuropsychology
- Vol. 22 (4), 531-544
- https://doi.org/10.1037/0894-4105.22.4.531
Abstract
This article describes the development and validation of an instrument to assess cognitively mediated functional abilities in older adults, Everyday Cognition (ECog). The ECog is an informant-rated questionnaire comprised of multiple subscales. Confirmatory factor analysis (CFA) was used to examine its factor structure. Convergent validity was evaluated by comparing it to established measures of everyday function. External validity was evaluated by comparing ECog results across different clinical groups [cognitively normal, mild cognitive impairment (MCI), dementia]. CFA supported a seven-factor model including one global factor and six domain-specific factors (Everyday Memory, Language, Visuospatial Abilities, Planning, Organization, and Divided attention). The ECog correlated with established measures of functional status and global cognition, but only weakly with age and education. The clinical groups performed differently in each domain. In addition to the global factor, the Everyday Memory factor independently differentiated MCI from Normal, while the Everyday Language domain differentiated Dementia from MCI. Different subtypes of MCI also showed different patterns. Results suggest the ECog shows promise as a useful tool for the measurement of general and domain-specific everyday functions in the elderly.Keywords
Funding Information
- National Institute on Aging (AG021511)
- California Department of Health Services
This publication has 40 references indexed in Scilit:
- The role of the bifactor model in resolving dimensionality issues in health outcomes measuresQuality of Life Research, 2007
- A Bifactor Approach to Modeling the Structure of the Psychopathy Checklist-RevisedJournal of Personality Disorders, 2007
- MCI is Associated With Deficits in Everyday FunctioningAlzheimer Disease & Associated Disorders, 2006
- Discriminative and predictive power of an informant report in mild cognitive impairmentJournal of Neurology, Neurosurgery & Psychiatry, 2006
- Everyday action in dementia: Evidence for differential deficits in Alzheimer's diseaseversussubcortical vascular dementiaJournal of the International Neuropsychological Society, 2006
- Degree of discrepancy between self and other‐reported everyday functioning by cognitive status: dementia, mild cognitive impairment, and healthy eldersInternational Journal of Geriatric Psychiatry, 2005
- Screening for Dementia: Family Caregiver Questionnaires Reliably Predict DementiaThe Journal of the American Board of Family Medicine, 2005
- Predictors of institutionalization for people with dementia living at home with a carerInternational Journal of Geriatric Psychiatry, 1998
- Economic research on Alzheimer disease: a review of the literature.1997
- “Mini-mental state”: A practical method for grading the cognitive state of patients for the clinicianJournal of Psychiatric Research, 1975