11. If a researcher wishes to perform an experiment, they must _________ at least one of the variables being studied.

11. If a researcher wishes to perform an experiment, they must vary at least one of the variables being studied.What are the three factors under study?They are: IndependentDependentControlled variables One or more of the sample attribute categories serve as the experimental variable most of the time. It outlines the elements that the test and control samples differ in, which you are examining.Note that unbiased factors (OF): You can adjust these variables or circumstances in an experiment. Your claim is that there is a direct relationship between this variable and the dependent variable. Dependent variables (DV) are the elements you see or quantify.Learn more about experimental variables fromhttps://brainly.com/question/347133#SPJ1