diachronic study


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lon·gi·tu·di·nal stud·y

a study of the natural course of life or disorder in which a cohort of subjects is serially observed over a period of time and no assumptions need be made about the stability of the system.
Synonym(s): diachronic study

longitudinal study

An epidemiologic study that follows a population forward over time, evaluating the effects of one or more variables on a process. If individuals are followed, it is termed a longitudinal cohort study. If classes—e.g., age classes—are studied, it is a longitudinal cross-sectional study. Longitudinal studies are the converse of horizontal studies.
 
Examples
Cohort studies; case-control studies; Framingham Study in Massachusetts, US; Port Pirie study, an ongoing analysis of the long-term effects of blood lead levels on IQ.

di·a·chron·ic study

(dī-ă-kron'ik stŭd'ē)
A study of the natural course of a life or disorder in which a cohort of subjects is serially observed over a period of time and no assumptions need be made about the stability of the system.
References in periodicals archive ?
The first is that Embodying Masculinities presents itself as a diachronic study and yet it does not provide an analysis of the masculine bodies in the 1940s.
The contribution by Nila Vazquez, Laura Esteban-Segura and Teresa Marques-Aguado fills a different gap: instead of using (historical) corpora for the diachronic study of English, what they provide is a survey of the most important (computerized) English historical corpora.
Heyworth's diachronic study envisages mutability of form as an all-pervasive process in the output of the magister amoris and confidently traces its uncanny influence.
Three of the essays consider the diachronic study of texts, with an eye not necessarily on the original version but on an altered version.
From Lineage to State is a diachronic study of ancient Indian political and social systems.
Her diachronic study of scene shifts nicely illustrates how well narratology and history can combine to illuminate changes in narrative form over time.
Lombardi's diachronic study moves from the preistoria of the feminist movement to late 20th-century backlash against progress attained by that movement.
The editors describe this approach as a "diachronic study of utopias," and as "but one of the ways of expressing the social imagination" (10).
Her emphasis on tracing the processes of change has resulted in a diachronic study of house forms, displacing the more static and synchronic image of "tradition" which is common in other works.
9:15 FAUNAL EXPLOITATION AT THE DIAMONDHEAD SITE (22HA550): A DIACHRONIC STUDY OF SUBSISTENCE STRATEGIES AT A GULF COAST SHELL MIDDEN