In science, "control" refers to a standard of comparison in experiments, allowing researchers to determine the effect of an independent variable on a dependent variable. Controls are essential for ensuring that the results of an experiment are valid and that they can be attributed to the factor being tested rather than other variables.
There are two main types of controls in experimental design:
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Control Group: This is a group in an experiment that does not receive the experimental treatment or intervention. It serves as a baseline to compare results from the experimental group that does receive the treatment.
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Controlled Variables: These are variables that are kept constant throughout an experiment to prevent them from influencing the outcome. By controlling these variables, researchers can isolate the effects of the independent variable on the dependent variable.
Overall, the concept of control is vital for conducting rigorous scientific research, enabling scientists to draw meaningful conclusions from their experiments.