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Indicate whether each of the following studies is an experiment or an observational study. If it...

Indicate whether each of the following studies is an experiment or an observational study. If it is an experiment, identify the independent variable and note any possible confounding variables.

An investigator wishes to test whether, when compared with recognized scientists, recognized artists tend to be born under different astrological signs.

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The investigator wishes to test whether, when compared with recognized scientists, recognized artists tend to be born under different astrological signs. This is not an experiment, it is an observation study as the existing condition by nature is observed and analyzed. In experiment, subjects have to undergo experimental conditions like taking a particular drug, doing particular activity under certain conditions etc. In an experiment, there are two groups namely control group and subjects. Control group are the one who does not undergo any condition unknowingly whereas the subject group undergo the condition. Then the result between the control group and subjects are compared and analyzed. The given scenario also looks similar to the groups of experiment but there is no condition implied. So the given scenario is an observational study.

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