Why do scientists use control groups in experiments?

2 answers:

3 0

A reasearcher must only measure one variable at atime,and using a scientific control group gives reliable baseline data to compare their results with.

laila [671]3 years ago

3 0

<span>Scientists use control groups in experiments to have more reliable data and to minimize the errors in the experiments. Usually, scientists study about an effect of different factors one at a time so it is important to have control to avoid other factors that may affect the set-up.</span>

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