Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults: The Tasmanian Healthy Brain Project

Mathew J Summers; Megan E Thow; David D Ward; Nichole L Saunders; Shannon Z Klekociuk; Abbie-Rose Imlach; Jeffery J Summers; James C Vickers

doi:10.1177/1073191116685806

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Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults: The Tasmanian Healthy Brain Project

Journal article

Open access

Peer reviewed

Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults: The Tasmanian Healthy Brain Project

Mathew J Summers, Megan E Thow, David D Ward, Nichole L Saunders, Shannon Z Klekociuk, Abbie-Rose Imlach, Jeffery J Summers and James C Vickers

Assessment, Vol.26(4), pp.737-742

2019

DOI: https://doi.org/10.1177/1073191116685806

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Abstract

cognitive reserve

validity

confirmatory factor analysis

older adults

healthy

education

Cognitive reserve (CR) is a theoretical construct describing the underlying cognitive capacity of an individual that confers differential levels of resistance to, and recovery from, brain injuries of various types. To date, estimates of an individual's level of CR have been based on single proxy measures that are retrospective and static in nature. To develop a measure of dynamic change in CR across a lifetime, we previously identified a latent factor, derived from an exploratory factor analysis of a large sample of healthy older adults, as current CR (cCR). In the present study, we examined the longitudinal results of a sample of 272 older adults enrolled in the Tasmanian Healthy Brain Project. Using results from 12-month and 24-month reassessments, we examined the longitudinal validity of the cCR factor using confirmatory factor analyses. The results of these analyses indicate that the cCR factor structure is longitudinally stable. These results, in conjunction with recent results from our group demonstrating dynamic increases in cCR over time in older adults undertaking further education, lend weight to this cCR measure being a valid estimate of dynamic change in CR over time.

Details

Title: Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults: The Tasmanian Healthy Brain Project
Authors: Mathew J Summers (Author) - University of the Sunshine Coast - Faculty of Arts, Business and Law
Megan E Thow (Author) - University of Tasmania
David D Ward (Author) - University of Tasmania
Nichole L Saunders (Author) - University of Tasmania
Shannon Z Klekociuk (Author) - University of Tasmania
Abbie-Rose Imlach (Author) - University of Tasmania
Jeffery J Summers (Author) - University of Tasmania
James C Vickers (Author) - University of Tasmania
Publication details: Assessment, Vol.26(4), pp.737-742
Publisher: Sage Publications Inc.
Date published: 2019
DOI: 10.1177/1073191116685806
ISSN: 1073-1911; 1073-1911
Grants: The Tasmanian Healthy Brain Project: a longitudinal intervention study to reduce the risk of ageing-related cognitive decline and dementia, 1108794, National Health and Medical Research Council (Australia, Canberra) - NHMRC
The Healthy Brain Project: A prospective cohort study to examine how later-life university education may affect the trajectory of ageing-related cognitive decline, 1003645, National Health and Medical Research Council (Australia, Canberra) - NHMRC
Organisation Unit: School of Health; School of Social Sciences - Legacy; University of the Sunshine Coast, Queensland; School of Health - Psychology; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99451171002621
Output Type: Journal article
Research Statement: false

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Psychology, Clinical

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