What needs to be explained to account for age-related effects on multiple cognitive variables?

Full Abstract

Structural equation methodology was used to investigate age-related influences across a number of cognitive variables in 204 adults ranging from 18 to 91 years of age with a hierarchical structure that contained 4 1st-order factors and 1 2nd-order common factor. Direct age relations were found to the common factor as well as to 1st-order speed and memory factors. Replicability of the findings was explored by investigating the same structure of age relations, using 2 different data sets, and a similar patten was found in each. These results suggest that at least 3 statistically distinct types of age-related influences are operating on a wide variety of cognitive variables and presumably require separate explanatory mechanisms.

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Author information

Author/s: Salthouse, Timothy A (TA); Ferrer-Caja, Emilio (E);

Affiliation: Department of Psychology, University of Virginia, Charlottesville 22904-4400, USA. salthouse(-atsign-)virginia.edu

Journal and publication information

Publication Type: Journal Article

Journal: Psychology and aging (Psychol Aging), published in United States. (Language: eng)

Reference: 2003-Mar; vol 18 (issue 1) : pp 91-110

Dates: Created 2003/03/18; Completed 2003/06/06; Revised 2004/11/17;

PMID: 12641315, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adolescent
Adult
Aged
Aged, 80 and over
Aging - psychology
Cognition
Cognition Disorders - etiology; psychology

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