An independent variable is a variable that is manipulated or varied in an experimental study to explore its effects. It is not influenced by any other variables in the study. Independent variables are also called explanatory variables or predictor variables. Some common independent variables include time, space, density, mass, fluid flow rate, and previous values of some observed value of interest. In an experiment, any variable that can be attributed a value without attributing a value to any other variable is called an independent variable.
To determine the independent variable in a study, you should look for characteristics or keywords that identify it. Independent variables are not affected by any other variables that the study measures. They are the variables that are being tested in an experiment, and they are the variables that are manipulated by the researcher.
