leeryan717 leeryan717

25-03-2016
Biology

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A(n)_____________ is an investigation in which a group that receives some experimental treatment is compared to a group that does not receive the experimental treatment.

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Аноним Аноним

25-03-2016

A control group is an investigation in which a group that receives some experimental treatment is compared to a group that does not receive the experimental treatment

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SmarticalParticals SmarticalParticals

26-03-2016

A clinical trial is this type of investigation.

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