Cross-sectional study
Cross-sectional studies form a class of research methodsthat involve observation of some subset of a population of items all at the same time.
The alternative are longitudinal studies.
Categories: Mathematics stubs| Research methods| Epidemiology
This article is licensed under the GNU Free Documentation License. It uses material from the http://en.wikipedia.org/wiki/Cross-sectional+study Wikipedia article Cross-sectional study.
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