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A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people) over long periods of time (i.e., uses longitudinal data). It is often a type of observational study, although it can also be structured as longitudinal randomized experiment. [1]
A popular repeated-measures design is the crossover study. A crossover study is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies can be observational studies, many important crossover studies are controlled experiments.
The National Longitudinal Survey of Children and Youth (NLSCY) is a project of Statistics Canada which engages in the long-term study of children. The NLSCY is implemented by Statistics Canada and Human Resources and Social Development Canada, and charged with identifying and charting longer-term trends in Canadian youth. The survey tracks the ...
Panel data is a subset of longitudinal data where observations are for the same subjects each time. Time series and cross-sectional data can be thought of as special cases of panel data that are in one dimension only (one panel member or individual for the former, one time point for the latter). A literature search often involves time series ...
The Canadian Research Data Centre Network (CRDCN) is a network of quantitative social sciences which includes 27 facilities across Canada that provide "access to a vast array of social, economic, and health data, primarily gathered" by Statistics Canada and disseminate "research findings to the policy community and the Canadian public."
In medical research, epidemiology, social science, and biology, a cross-sectional study (also known as a cross-sectional analysis, transverse study, prevalence study) is a type of observational study that analyzes data from a population, or a representative subset, at a specific point in time—that is, cross-sectional data. [definition needed]
The study is funded by the Economic and Social Research Council, a consortium of UK Government departments and the British Academy. Understanding Society is led by the Institute for Social and Economic Research (ISER) [2] at the University of Essex. As a panel survey, Understanding Society is a form of longitudinal study. The survey consists of ...
A prospective cohort study is a longitudinal cohort study that follows over time a group of similar individuals who differ with respect to certain factors under study to determine how these factors affect rates of a certain outcome. [1]