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9 January, 15:58

Observational studies are sometimes referred to as natural experiments. explain what this means

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  1. 9 January, 17:52
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    In an observational study, a researcher measures characteristics of interest of a part of a population but does not change existing conditions.

    In various fields an observational study draws deductions from a specimen to a populace where the independent variable isn't under the control of the scientist due to moral concerns or strategic requirements.
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