Life-span perspectives on development

Presents the central concepts of the life-span approach and two levels of metatheory about the nature of ontogeny. In the final section, the authors outlined how these different concepts and levels of metatheory may be addressed in the design and interpretation of research. The life-span approach integrates a number of interrelated propositions about the overall architecture and change mechanisms that characterize the human life course. The approach has a long history. The framework of ideas associated with it have implications for theory, research, method, and intervention at any age period. Child psychologists as well as researchers of adolescence, adulthood, and old age are concerned equally with questions about communalities, interindividual differences, and intraindividual variability in development. (PsycINFO Database Record (c) 2007 APA, all rights reserved) (from the chapter)