experimental design example.... biology
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Explanation:
For example, in the aspirin study, the control group would receive a pill that looks the same as aspirin, but contains no active ingredient (a placebo)
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Answer:
For example, in the aspirin study, the control group would receive a pill that looks the same as aspirin, but contains no active ingredient (a placebo). Controlled variables are quantities that a scientist wants to remain constant between the experimental and control groups.
Explanation:
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