medRxiv : the preprint server for health sciences · 2025
Remote, self-administered, smartphone cognitive testing in a registry-based cohort: Feasibility, reliability, and validity findings.
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Dhanam Sreya, Sanderson-Cimino Mark, Taylor Jack Carson, Paolillo Emily W, Fregly Ray, Kwang Winnie, Maruff Paul, Wise Amy, Heuer Hilary W, Forsberg Leah K, Kramer Joel H, Boeve Bradley F, Rosen Howard J, Mackin R Scott, Weiner Michael W, Nosheny Rachel L, Boxer Adam L, Staffaroni Adam M
Аннотация
BACKGROUND: Remote, smartphone-based cognitive testing may improve access to cognitive assessments for Alzheimer's disease and related dementias. We evaluated the feasibility, reliability, and validity of unsupervised smartphone-based cognitive tests in a registry-based cohort.
METHODS: Adults without a record of cognitive impairment (N=1,815; ages 18-92) were recruited from the UCSF Brain Health Registry to complete unsupervised ALLFTD-mApp cognitive tasks three times over two weeks. Reliability was assessed with correlations between sessions. Linear regression models tested associations of ALLFTD-mApp tasks with demographics, self- and informant-rated cognitive concerns (Everyday Cognition Surveys; ECog), and web-based cognitive testing (CogState Brief Battery; CBB).
RESULTS: Adherence was high (82.2%) and usability favorable. Test-retest reliability was moderate to strong (ρs = 0.61-0.85, all ps < .001). Lower ALLFTD-mApp scores were associated with older age, lower education, cognitive concerns, and worse CBB performance.
CONCLUSION: Findings support the feasibility, reliability, and validity of the ALLFTD-mApp in adults without a record of cognitive impairment.
METHODS: Adults without a record of cognitive impairment (N=1,815; ages 18-92) were recruited from the UCSF Brain Health Registry to complete unsupervised ALLFTD-mApp cognitive tasks three times over two weeks. Reliability was assessed with correlations between sessions. Linear regression models tested associations of ALLFTD-mApp tasks with demographics, self- and informant-rated cognitive concerns (Everyday Cognition Surveys; ECog), and web-based cognitive testing (CogState Brief Battery; CBB).
RESULTS: Adherence was high (82.2%) and usability favorable. Test-retest reliability was moderate to strong (ρs = 0.61-0.85, all ps < .001). Lower ALLFTD-mApp scores were associated with older age, lower education, cognitive concerns, and worse CBB performance.
CONCLUSION: Findings support the feasibility, reliability, and validity of the ALLFTD-mApp in adults without a record of cognitive impairment.