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Unsupervised assessment of cognition in the Healthy Brain Project : Implications for web-based registries of individuals at risk for Alzheimer's disease
Perin, Stephanie Buckley, Rachel F. Pase, Matthew P. Yassi, Nawaf Lavale, Alexandra Wilson, Peter H. Schembri, Adrian Maruff, Paul Lim, Yen Ying
Perin, Stephanie
Buckley, Rachel F.
Pase, Matthew P.
Yassi, Nawaf
Lavale, Alexandra
Wilson, Peter H.
Schembri, Adrian
Maruff, Paul
Lim, Yen Ying
Abstract
Introduction
Web-based platforms are used increasingly to assess cognitive function in unsupervised settings. The utility of cognitive data arising from unsupervised assessments remains unclear. We examined the acceptability, usability, and validity of unsupervised cognitive testing in middle-aged adults enrolled in the Healthy Brain Project.
Methods
A total of 1594 participants completed unsupervised assessments of the Cogstate Brief Battery. Acceptability was defined by the amount of missing data, and usability by examining error of test performance and the time taken to read task instructions and complete tests (learnability).
Results
Overall, we observed high acceptability (98% complete data) and high usability (95% met criteria for low error rates and high learnability). Test validity was confirmed by observation of expected inverse relationships between performance and increasing test difficulty and age.
Conclusion
Consideration of test design paired with acceptability and usability criteria can provide valid indices of cognition in the unsupervised settings used to develop registries of individuals at risk for Alzheimer's disease.
Keywords
acceptability, Alzheimer’s disease, neuropsychological test, neuropsychology, neuroscience, online systems, psychological test, usability, validity
Date
2020
Type
Journal article
Journal
Alzheimer's and Dementia: Translational Research and Clinical Interventions
Book
Volume
6
Issue
1
Page Range
1-11
Article Number
Article e12043
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
Published as ‘gold’ (paid) open access
License
CC BY-NC-ND 4.0
File Access
Open