aging and older development
type: Concept
narrower: theories of aging

concepts
type: Collection
type: ConceptGroup
member: theories of aging

theories of aging
type: Concept
broader: aging and older development
definition: For more than 40 years, researchers in gerontology have commented on the need for theories of aging. K. Warner Schaie suggested that theories were needed to integrate the large amount of research data that was accumulating across disciplines. [Source: Encyclopedia of Human Development; Theories of Aging]