Overview

observational study


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Any of several varieties of nonexperimental scientific investigation in which the investigator relies on direct or indirect observation of a situation or behavior, for example a natural experiment or an epidemiological study such as a case control or cohort study. There is only observation without intervention, and there is no experiment in which an investigator manipulates or modifies conditions in some way.

Subjects: Science and Mathematics — Public Health and Epidemiology.


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