出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 21:41 UTC 版)
Scientific control refers to a concept that allows for comparison as a part of the scientific method. It is often used in discussion of natural experiments. For instance, during drug testing, scientists will try to control two groups to keep them as identical and normal as possible, then allow one group to try the drug. This allows science to isolate the effects of the drug.