Which statement describes the independent variable? it is measured and recorded as data. it is unchanged in the experiment. it is also called the responding variable. it is also called the manipulated variable.

It is also called the manipulated variable.

Explanation:

An independent variable is the variable that is changed in an experiment to be able to measure the changes of another variable and its behavior. As this is the variable that the person conducting an experiment modifies, it is also called the manipulated variable.

The other options are not right because the independent variable doesn't remain unchanged and it is not the variable that is measured in the experiment. Also, the responding variable is the one that shows the effect to the changes that are made in the experiment.