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Gerontology. 2004 Jul-Aug;50(4):255-8.

Within-person variability as a dynamic measure of late-life development: new methodologies and future directions.

Author information

  • 1Ageing Research Unit, Centre for Mental Health Research, Australian National University, Canberra, Australia. kaarin.anstey@anu.edu

Abstract

BACKGROUND:

Intra-individual variability is becoming a focus of research in behavioural gerontology due to theoretical and methodological advances.

OBJECTIVE:

New directions in the study of intra-individual variability are described and unanswered questions are proposed.

METHODS:

Papers from the special issue of Gerontology on Intra-individual Change are reviewed.

RESULTS:

Key findings and approaches from this set of papers are identified, including types of latent growth curve models that incorporate dynamic elements and applications to the study of late-life cognition and affect. Theoretical issues that remain unresolved are outlined.

CONCLUSION:

Dynamic approaches to the measurement of change provide novel methods to answer new questions and evaluate existing theories. The focus on intra-individual variability adds a valuable dimension to gerontological research that may refine the way we describe behaviour and measure change.

Copyright 2004 S. Karger AG, Basel

PMID:
15258432
[PubMed - indexed for MEDLINE]
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