die(md5(34563)); Why is it important that an experiment include a control? – Answers to All
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Why is it important that an experiment include a control?


Why is it important that an experiment include a control?
1. The control group always produces a positive result.
2. The control group dictates what must be done in an experiment.
3. The control group always produces a negative result.
4. A control group is required as a standard to compare with the other treatments.
5. The researcher controls some subjects in the control group but not others

4 is the correct answer.

Your teacher wants to see &quot:4&quot:. However, some scientific studies do just fine without controls. I suppose you could weasel out by saying that these studies are not &quot:experiments&quot:.

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