What is the role of the independent variable in an experiment?
A. Manipulated by the researcher
B. Measure outcome
C. Control data
D. Random factor
Answer (2)
The independent variable is the factor that a researcher manipulates in an experiment to determine its effect on the dependent variable. This careful manipulation allows scientists to explore cause-and-effect relationships. Keeping other variables constant ensures the experiment's validity. ;
The independent variable is the factor manipulated by researchers in an experiment to observe its effects on the dependent variable. It plays a crucial role in establishing cause-and-effect relationships, while controlled variables must remain constant. In an experiment testing plant growth with varying sunlight, the sunlight exposure is the independent variable.
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