Lots of information about variables and controls that you need in math as well as every experiment and lab report. MIX DRY is an acronym to help you remember how variables are plotted on a graph. It also serves as a reminder that there are two names for each variable because scientists have not reached an agreement yet.
M = manipulated variable I = independent variable X = graph information on the horizontal axis
D = dependent variable R = responding variable Y = graph information on the vertical axis
Independent Variable or Manipulated Variable is what you are testing. It is what causes things to change as you make changes to it. Some people nickname it the I-do variable.
Dependent Variable or the Responding Variable is the effect and it may or may not change. It is observed during as well as at the end of the experiment.
Controlled Variables are not graphed, but these could affect the results of the experiment. It is free of any change of the independent variable. Have as many controlled variables as possible to add validity.
Extraneous Variables are not graphed. They are unanticipated, unwanted events, which may cause incorrect experimental results and wrong conclusions.
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