Why is it important that an experiment include a control group
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Answer:
Without a control group what would you compare your results to? How would you know if the treatments had any effect? Scientists use a control group to see if some factor not being considered is responsible for the changes your hypothesis is assuming is due to some other cause. Chacha on!
pat phelan at ChaCha Visit the source
Other answers
The control group dictates what must be done in an experiment.
jeanette fulkerson
without a control group what would you compare your results to? how would you know if the treatments had any effect?
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