Time-structured and net intraindividual variability: Tools for examining the development of dynamic characteristics and processes.
Time Factors
Research Design
Human Development
Cohort Effect
05 social sciences
Individuality
Humans
0501 psychology and cognitive sciences
Models, Psychological
Psychological Theory
DOI:
10.1037/a0017915
Publication Date:
2009-12-22T00:53:39Z
AUTHORS (2)
ABSTRACT
The study of intraindividual variability is the study of fluctuations, oscillations, adaptations, and "noise" in behavioral outcomes that manifest on microtime scales. This article provides a descriptive frame for the combined study of intraindividual variability and aging/development. At the conceptual level, we show that the study of intraindividual variability provides access to dynamic characteristics-construct-level descriptions of individuals' capacities for change (e.g., lability)--and to dynamic processes--the systematic changes that individuals exhibit in response to endogenous and exogenous influences (e.g., regulation). At the methodological level, we review how quantifications of net intraindividual variability and models of time-structured intraindividual variability are used to measure and describe dynamic characteristics and processes. At the research design level, we point to the benefits of measurement-burst study designs, wherein data are obtained across multiple time scales, for the study of development.
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