How experimental and control group differ? Explain the experimental method with the help of an example?
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In an experiment, data from an experimental group is compared with data from a control group. These two groups should be identical in every respect except one: The difference between a control group and an experimental group is that the independent variable is changed for the experimental group, but is held constant in the control group.
An experimental group is the group that receives an experimental procedure or a test sample.
This group is exposed to changes in the independent variable being tested. The values of the independent variable and the result on the dependent variable are recorded. An experiment may include multiple experimental groups at one time.
A control group is a group separated from the rest of the experiment such that the independent variable being tested cannot influence the results. This isolates the independent variable's effects on the experiment and can help rule out alternate explanations of the experimental results.
While all experiments have an experimental group, not all experiments require a control group. Controls are extremely useful where the experimental conditions are complex and difficult to isolate. Experiments that use control groups are called controlled experiments.
An experimental group is the group that receives an experimental procedure or a test sample.
This group is exposed to changes in the independent variable being tested. The values of the independent variable and the result on the dependent variable are recorded. An experiment may include multiple experimental groups at one time.
A control group is a group separated from the rest of the experiment such that the independent variable being tested cannot influence the results. This isolates the independent variable's effects on the experiment and can help rule out alternate explanations of the experimental results.
While all experiments have an experimental group, not all experiments require a control group. Controls are extremely useful where the experimental conditions are complex and difficult to isolate. Experiments that use control groups are called controlled experiments.
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