Introduction to the special section on intraindividual variability and aging.

This preface introduces articles that appear in the special section on intraindividual variability and aging and illustrate what intraindividual variability might contribute to the study of development. These articles exemplify the variety of conceptual perspectives, analytical methods, and types of data that are being used to study intraindividual variability and illustrate what the study of intraindividual variability might contribute to the study of development. (PsycINFO Database Record (c) 2010 APA, all rights reserved)