What is a controlled experiment? This is when a hypothesis is scientifically tested. In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled.
What is the control experiment?
: an experiment in which all variable factors have been kept constant and which is used as a standard of comparison to the experimental component in a controlled experiment.
What is the purpose of a control experiment?
Controls allow the experimenter to minimize the effects of factors other than the one being tested. Its how we know an experiment is testing the thing it claims to be testing. This goes beyond science — controls are necessary for any sort of experimental testing, no matter the subject area.
Why is it so important to control the variables?
Why do control variables matter? Control variables enhance the internal validity of a study by limiting the influence of confounding and other extraneous variables. This helps you establish a correlational or causal relationship between your variables of interest.