An experiment usually involves a set of steps involving one variable. This is what is being tested. A control involves the same steps without the one variable. The results are checked against each other to see if the variable had any effect.
control and experimental setup
Without controlled setup in an experiment. How can the researcher know his data is comparable for study?
Answer The "Control"
Answer The "Control"
In the conduct of the experiment, two steps are tested.One setup is called the experimental setup.
In the conduct of the experiment, two steps are tested.One setup is called the experimental setup.
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To have something to compare the rest of the experiment to
Everything except what you're measuring. EXAMPLE: In a biological experiment using specially treated cells the experiment is run with the cells; this is the experiment. Then the experiment is run again with the same cells WITHOUT the special treatment; this is the control.
A control setup is something where you know how it will behave. It gives you a reference to measure affect of all other variables.
A control group is used to separate the setup for an experiment from the surroundings by providing a baseline for comparison. It is a group that is exposed to the same conditions as the experimental group but does not receive the treatment being tested. This allows researchers to determine the specific effects of the treatment being studied.
only 1 parameter, or, variable, is manipulated at a time