Abstract:
:There is a need for rapid and reliable Internet-based screening tools for cognitive assessment in middle-aged and older adults. We report the psychometric properties of an on-line tool designed to screen for cognitive deficits that require further investigation. The tool is composed of measures of memory and executive attention processes known to be sensitive to brain changes associated with aging and with cognitive disorders that become more prevalent with age. Measures included a Spatial Working Memory task, Stroop Interference task, Face-Name Association task, and Number-Letter Alternation task. Normative data were collected from 361 healthy adults age 50-79 who scored in the normal range on a standardized measure of general cognitive ability. Participants took the 20-minute on-line test on their home computers, and a subset of 288 participants repeated the test 1 week later. Analyses of the individual tasks indicated adequate internal consistency, construct validity, test-retest reliability, and alternate version reliability. As expected, scores were correlated with age. The four tasks loaded on the same principle component. Demographically-corrected z-scores from the individual tasks were combined to create an overall score, which showed good reliability and classification consistency. These results indicate the tool may be useful for identifying middle-aged and older adults with lower than expected scores who may benefit from clinical evaluation of their cognition by a health care professional.
journal_name
Front Aging Neuroscijournal_title
Frontiers in aging neuroscienceauthors
Troyer AK,Rowe G,Murphy KJ,Levine B,Leach L,Hasher Ldoi
10.3389/fnagi.2014.00335subject
Has Abstractpub_date
2014-12-10 00:00:00pages
335issn
1663-4365journal_volume
6pub_type
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journal_title:Frontiers in aging neuroscience
pub_type: 已发布勘误
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journal_title:Frontiers in aging neuroscience
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journal_title:Frontiers in aging neuroscience
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journal_title:Frontiers in aging neuroscience
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journal_title:Frontiers in aging neuroscience
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journal_title:Frontiers in aging neuroscience
pub_type: 杂志文章
doi:10.3389/fnagi.2017.00372
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doi:10.3389/fnagi.2017.00273
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