title: Intraindividual variability and short-term change. Commentary.
abstract: BACKGROUND
  Interest in the study of intraindividual variability is growing rapidly.
  
  
  OBJECTIVE
  The present collection of papers deals with both longer-term, growth and change and shorter-term intraindividual variability.
  
  
  METHODS
  The papers emphasize primarily the former within the context of analyzing large, longitudinal data sets. Also discussed are some key methodological matters.
  
  
  RESULTS
  Criteria to help with choosing methods and modeling with missing data are included.
  
  
  CONCLUSIONS
  A promising direction is toward developing a more systematic and intensive conception of the meaning and significance of the wide variety of manifestations of intraindividual variability and integrating them into theories of aging.
authors.affiliation: Department of Psychology, University of Virginia, Charlottesville, VA 22904-4400, USA. jrn8z@virginia.edu
authors.forename: John R
authors.initials: JR
authors.lastname: Nesselroade
mesh_terms: D000375:Aging / Q000502:physiology*; D006801:Humans; D007206:Individuality; D008962:Models, Theoretical