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During an experiment, your 'control' group is an unaltered, unchanged sample. For example, when reacting a metal with an acid, you may not react a sample of the metal as your control.

The reason for this is to provide a basis of comparison for your experiment. In other words, it lets you easily compare what happened after the reaction to what the sample was like before. In the earlier example, having a control of the reactant (metal) will allow you to understand the effect the acid had on the metal during and after the reaction.

This also applies to all experiments, not just chemical ones.

Basically it's a frame of reference to show that what happened probably didn't just happen by chance.

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11y ago
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15y ago

a control group means that you dont do anything to it.

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12y ago

To establish a baseline to compare your results to.

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Q: What is the role of a control group in an experiment?
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Related questions

What is the role of a control group in any experiment?

To compare data


What is the role of the control group in an experiment?

To establish a baseline to compare your results to.


What is a control group in a science experiment?

A control group is the unaffected group in a science experiment.


Why is is it important that an experiment include a control group?

a control group assures that an experiment will be repeatable


What is a control or control group?

the group that does not change in the experiment VIVI :)


In an experiment a group that receives no treatment is called what?

A group that receives no treatment is called the control group. The control group is there to compare the results between a group that has been exposed to diffent conditions, and one that has not.


What is a role in a control group in any experiment?

it acts as a source. a dependent variable that isn't altered by any independent variables.


What is the difference between a control group and a control?

A test group is the group in an experiment to which the change is being applied and the control group is the same type of group in an experiment to which nothing is done to compare the changes in the test group to.


What does a control group have to do with the independent variable?

the answer to that question is the control group has nothing to do with the independent variable because a control group is some thing in your experiment that has not changed through out your experiment. And a independent variable is some thing in your experiment that you change through your experiment(s)


Why is it important to control an experiment?

The control experiment allows a standard of comparison for the experimental group


What is the comparison group in a controlled experiment?

control group


What do you call something you experiment on?

Control and Experiment group is what you would normally have in an experiment