In an experiment,a researcher manipulates one variable to see how it affects a second variable.The manipulated variable is called the:
A)dependent variable.
B)experimental variable.
C)independent variable.
D)placebo.

Question

Quizplus · Accepted Answer

The independent variable is the variable that is being manipulated or changed by the researcher in the experiment. It is the cause and is often the variable that is hypothesized to have an effect on the dependent variable. The dependent variable, on the other hand, is the variable that is measured or observed as the outcome or effect of the independent variable. The experimental variable refers to any variable in the experiment that is being measured or manipulated. Placebo is a substance or treatment given to the control group in an experiment to control for the so-called placebo effect. Therefore, the best choice is C) independent variable.

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