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18 August, 08:32

Why is it necessary for every experiment to include a control group

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  1. 18 August, 11:11
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    So that you can tell what is changing in the experimental group vs the control group.
  2. 18 August, 11:40
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    A control group is important for an experiment because it allows the experiment to minimize the changes in all other variables except the one being tested.
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