Answer:Independent
Step-by-step explanation:
Independent variable: The variable that is being changed or manipulated in an experiment. The changes or alteration in the independent variables can lead to changes in the dependent variable.
It is only the researcher or the experimenter, who can make changes in the independent variables throughout the study.
There are three types of variables that can be used in an experiment:
1. Independent variables.
2. Dependent variables.
3. Control variables.