Dependent and independent variables

Variables used in an experiment or modelling can be divided into three types:

• Dependent variable
• Independent variable
• Other

The "dependent variable" represents the output or effect, or is tested to see if it is the effect.

The "independent variables" represent the inputs or causes, or are tested to see if they are the cause.

Other variables may also be observed for various reasons.

See also

• Differential equation

External links

• Dependent and independent variables @ Wikipedia