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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Short "hint"

(in an experiment or clinical trial) a group of subjects closely resembling the treatment group in many demographic variables but not receiving the active medication or factor under study and thereby serving as a comparison group when treatment results ar

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Usage examples (18)
  • A few of the control-group children fell for this trick.
  • We have no two-century control-group world where those books were not published, so we cannot see what effect there would have been without them.
  • Aspect's medical director, says Washington University gave its control-group physicians tools and procedures that aren't common during routine surgeries.
  • The control-group children had three different types of brain-wave responses, depending on the emotions the researcher displayed — positive, negative or neutral.
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