Definition of 'control group'
Example sentences containing 'control group'
We would not expect much change in either two control groups.Educational Psychology in a Changing World (1988)
Another control group was not scanned.Times, Sunday Times (2007) Love, Medicine and Miracles (1990) Times, Sunday Times (2014)
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Trends of 'control group'
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Definition of control group from the Collins English Dictionary
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