Campus Units

Human Development and Family Studies

Document Type

Article

Publication Version

Published Version

Publication Date

2012

Journal or Book Title

Journal of Aging Research

Volume

2012

First Page

934649

DOI

10.1155/2012/934649

Abstract

Objectives. Using data from the first two phases of the Georgia Centenarian Study, we proposed a latent factor structure for the Duke OARS domains: Economic Resources, Mental Health, Activities of Daily Living, Physical Health, and Social Resources. Methods. Exploratory and confirmatory factor analyses were conducted on two waves of the Georgia Centenarian Study to test a latent variable measurement model of the five resources; nested model testing was employed to assess the final measurement model for equivalency of factor structure over time. Results. The specified measurement model fit the data well at Time 1. However, at Time 2, Social Resources only had one indicator load significantly and substantively. Supplemental analyses demonstrated that a model without Social Resources adequately fit the data. Factorial invariance over time was confirmed for the remaining four latent variables. Discussion. This study’s findings allow researchers and clinicians to reduce the number of OARS questions asked of participants. This has practical implications because increased difficulties with hearing, vision, and fatigue in older adults may require extended time or multiple interviewer sessions to complete the battery of OARS questions.

Comments

This article is published as Randall, G. Kevin, Peter Martin, Mary Ann Johnson, and Leonard W. Poon. "Successful aging: A psychosocial resources model for very old adults." Journal of aging research 2012 (2012). doi:10.1155/2012/934649. Posted with permission.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

Included in

Gerontology Commons

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