期刊
ASSESSMENT
卷 25, 期 1, 页码 14-30出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/1073191116643164
关键词
ambulatory assessment; smartphone; ecological validity; cognition
资金
- National Institute of Health (NIH) from the National Center for Advancing Translational Sciences (NCATS) [R01 AG039409, R01 AG042595, P01 AG03949, CTSA 1UL1TR001073]
- Leonard and Sylvia Marx Foundation
- Czap Foundation
- NATIONAL CENTER FOR ADVANCING TRANSLATIONAL SCIENCES [UL1TR001073] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [R01AG042595, P01AG003949, R01AG039409] Funding Source: NIH RePORTER
Mobile technologies are increasingly used to measure cognitive function outside of traditional clinic and laboratory settings. Although ambulatory assessments of cognitive function conducted in people's natural environments offer potential advantages over traditional assessment approaches, the psychometrics of cognitive assessment procedures have been understudied. We evaluated the reliability and construct validity of ambulatory assessments of working memory and perceptual speed administered via smartphones as part of an ecological momentary assessment protocol in a diverse adult sample (N = 219). Results indicated excellent between-person reliability (0.97) for average scores, and evidence of reliable within-person variability across measurement occasions (0.41-0.53). The ambulatory tasks also exhibited construct validity, as evidence by their loadings on working memory and perceptual speed factors defined by the in-lab assessments. Our findings demonstrate that averaging across brief cognitive assessments made in uncontrolled naturalistic settings provide measurements that are comparable in reliability to assessments made in controlled laboratory environments.
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