When doing experimental research,why is it important to control for everything except the independent variable?

Question

Quizplus · Accepted Answer

Controlling for everything except the independent variable in experimental research is important so that a clear conclusion can be drawn about what influences the dependent variable. This helps to ensure that changes in the dependent variable are a result of the independent variable, rather than other variables that may be present in the experiment. This increases the validity and reliability of the experiment's results. Controlling for other variables also helps to reduce confounding variables, which can interfere with the accuracy of the results.

When Doing Experimental Research,why Is It Important to Control for Everything