The Cognitive Telephone Screening Instrument (COGTEL): a brief, reliable, and valid tool for capturing interindividual differences in cognitive functioning in epidemiological and aging studies

TitleThe Cognitive Telephone Screening Instrument (COGTEL): a brief, reliable, and valid tool for capturing interindividual differences in cognitive functioning in epidemiological and aging studies
Publication TypeJournal Article
Year of Publication2017
AuthorsIhle, A, Gouveia, ÉR, Gouveia, BR, Kliegel, M
JournalDementia and Geriatric Cognitive Disorders Extra
Volume7
Number3
Pagination339–345
ISSN1664-5464
KeywordsAssessment of cognitive functioning, Interindividual differences, older adults
Abstract

Aims: The present study set out to evaluate the psychometric properties of the Cognitive Telephone Screening Instrument (COGTEL) in 2 different samples of older adults. Methods: We assessed COGTEL in 116 older adults, with retest after 7 days to evaluate the test-retest reliability. Moreover, we assessed COGTEL in 868 older adults to evaluate convergent validity to the Mini-Mental State Examination (MMSE). Results: Test-retest reliability of the COGTEL total score was good at 0.85 (p < 0.001). Latent variable analyses revealed that COGTEL and MMSE correlated by 0.93 (p < 0.001), indicating convergent validity of the COGTEL. Conclusion: The present analyses suggest COGTEL as a brief, reliable, and valid instrument for capturing interindividual differences in cognitive functioning in epidemiological and aging studies, with the advantage of covering more cognitive domains than traditional screening tools such as the MMSE, as well as differentiating between individual performance levels, in healthy older adults.

URLhttps://www.karger.com/Article/FullText/479680
DOI10.1159/000479680
Short TitleThe Cognitive Telephone Screening Instrument (COGTEL)
PubMed ID29118786