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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

Citation

Summers, MJ and Thow, M and Ward, DD and Saunders, NL and Klekociuk, SZ and Imlach, A and Summers, JJ and Vickers, JC, Validation of a Dynamic Measure of Current Cognitive Reserve in a Longitudinally Assessed Sample of Healthy Older Adults: The Tasmanian Healthy Brain Project, Assessment pp. 1-6. ISSN 1073-1911 (2017) [Refereed Article]

Copyright Statement

Copyright 2017 The Authors

DOI: doi:10.1177/1073191116685806

Abstract

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 individualís 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.

Item Details

Item Type:Refereed Article
Keywords:cognitive reserve, confirmatory factor analysis, older adults, education
Research Division:Psychology and Cognitive Sciences
Research Group:Psychology
Research Field:Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Nervous System and Disorders
Author:Summers, MJ (Dr Mathew Summers)
Author:Thow, M (Ms Megan Thow)
Author:Ward, DD (Mr David Ward)
Author:Saunders, NL (Dr Nichole Saunders)
Author:Klekociuk, SZ (Dr Shannon Klekociuk)
Author:Imlach, A (Miss Abbie-Rose Imlach)
Author:Summers, JJ (Professor Jeffery Summers)
Author:Vickers, JC (Professor James Vickers)
ID Code:115837
Year Published:2017
Deposited By:Wicking Dementia Research and Education Centre
Deposited On:2017-04-12
Last Modified:2017-05-02
Downloads:0

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