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Journal of Aging Research
Volume 2014 (2014), Article ID 798514, 5 pages
http://dx.doi.org/10.1155/2014/798514
Research Article

A Brief Report on the Factor Structure of the Cognitive Measures in the HRS/AHEAD Studies

1Department of Psychology, Spelman College, 350 Spelman Lane S. W., Box 259, Atlanta, GA 30314, USA
2Department of Psychology, University of Southern California, 711 Seeley G. Mudd Building, Los Angeles, CA 90089, USA

Received 2 December 2013; Revised 7 May 2014; Accepted 7 May 2014; Published 28 May 2014

Academic Editor: F. R. Ferraro

Copyright © 2014 A. Nayena Blankson and John J. McArdle. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Using cognitive data from the Health and Retirement Study and Asset Health Dynamics Among the Oldest Old studies that were collected between 1992 and 2004, McArdle and colleagues (2007) found that a two-factor model (episodic memory and mental status) fit better than a one-factor model. The question that was addressed in the present study was whether these results would replicate in newer cohorts of data, collected between 2006 and 2010. We also tested age, education, and gender as predictors of the identified factors. Results confirm that a two-factor structure fits better than the single-factor model in the newer cohorts. Differential predictors were also observed.