#experiment.scientific_research__experimentation  the act of conducting a controlled test or investigation
  supertype:  scientific_research__research_project  research into questions posed by scientific theories and hypotheses
  subtype:  testing  trial_and_error  Michelson-Morey_experiment  control_experiment
  part:  control_condition__controlcondition__control  a standard against which other conditions can be compared in a scientific experiment; "the control condition was inappropriate for the conclusions he wished to draw"
  part:  experimental_condition__condition  the procedure that is varied in order to estimate a variable's effect by comparison with a control condition

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