Definition of Independent Variable:

An independent variable is a characteristic or factor that is manipulated or controlled by the researcher in a scientific experiment. It is the variable that is changed or varied in order to observe its effect on the dependent variable.

The independent variable is deliberately chosen by the researcher to test its impact on the dependent variable. By altering the independent variable, the researcher can analyze the cause-and-effect relationship between the independent and dependent variables.

In scientific studies, it is crucial to have a clear and measurable independent variable to ensure accurate results and conclusions. This allows researchers to investigate the specific effects and influences that the independent variable has on the dependent variable in a controlled experimental setup.