Question
With the help of a flow chart, classify the various research design’s available in epidemiological research.
Answer :
Word Count : 210
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Skip in 10
In observational studies, the researcher observes and systematically collects information, but does not try to change the people (or animals, or reagents) being observed. In an experiment, by contrast, the researcher intervenes to change something (e.g., gives some patients a drug) and then observes
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