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Inga [223]
3 years ago
6

Why do scientists use control groups in experiments?

Biology
2 answers:
CaHeK987 [17]3 years ago
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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