In an experiment,a researcher manipulates one variable to see how it affects a second variable.The second variable,which is observed for any possible effects,is called the __________ variable.

Question

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The dependent variable is the variable being observed for any possible effects. It is the variable that is affected by the manipulation of the independent variable. The control variable is a constant variable that is held constant across all conditions of the experiment. The independent variable is the variable that is manipulated by the researcher to examine its effect on the dependent variable. The placebo variable is a fake treatment or substance given to a control group to rule out the effects of expectation or bias.

In an Experiment,a Researcher Manipulates One Variable to See How