2012•Encyclopedia of EnvironmetricsRequires access

Longitudinal Studies

C. B. Dean, X. Joan Hu

Abstract

Abstract A longitudinal study observes its subjects repeatedly over time. The subjects can be individuals or pre existing groups of interest, such as species and regions, and the time refers to the metameter for the occasions of observation. Longitudinal data allow one to separate cohort and time effects. This article summarizes the special features of longitudinal studies, and overviews statistical study design and data analysis in longitudinal settings.

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Available abstract

Key concepts: Longitudinal study, Longitudinal data, Computer science, Psychology, Statistics, Mathematics, Data mining