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Social Studies, 31.01.2020 00:05 scholarlystudenttt28
The essence of an experiment, as opposed to an observational study is to:
a. change one or more factors and observe the effects
b. reduce the number of hidden variables
c. base findings on a facts that can be observed and verified.
d. start with a hypothesis and prove or disprove it
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The essence of an experiment, as opposed to an observational study is to:
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