TitleReliability and Validity of Ambulatory Cognitive Assessments.
Publication TypeJournal Article
Year of Publication2018
AuthorsSliwinski, MJ, Mogle, JA, Hyun, J, Munoz, E, Smyth, JM, Lipton, RB
Date Published2018 Jan
KeywordsAdult, Aged, Aging, Cognition, Ecology, Female, Humans, Male, Memory, Mental Recall, Middle Aged, Neuropsychological Tests, New York City, Prospective Studies, Psychology, Clinical, Reaction Time, Reproducibility of Results, Smartphone, Stress, Psychological, Task Performance and Analysis

<p>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.</p>

Alternate JournalAssessment
PubMed ID27084835
PubMed Central IDPMC5690878
Grant ListP01 AG003949 / AG / NIA NIH HHS / United States
R01 AG039409 / AG / NIA NIH HHS / United States
R01 AG042595 / AG / NIA NIH HHS / United States
UL1 TR001073 / TR / NCATS NIH HHS / United States