Which statement best describes the variables in a controlled experiment?
A.The independent variable is changed to see its effect on the dependent variable while all other conditions are unchanged.
B.The dependent variable is changed to see its effect on the independent variable while all other conditions are unchanged.
C.The independent variable is allowed to change, and the dependent variable is held constant to see what other conditions show a relationship.
D.The dependent variable is allowed to change, and the independent variable is held constant to see what other conditions show a relationship.

I think the correct answer from the choices listed above is option A. In a controlled experiment, the independent variable is changed to see its effect on the dependent variable while all other conditions are unchanged. Hope this answers the question. Have a nice day.

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Dejanras Dejanras · Answer 2 · 2018-11-25T11:54:15+01:00

Answer is: A. The independent variable is changed to see its effect on the dependent variable while all other conditions are unchanged.

The two main variables in an experiment are the independent and dependent variable.

Dependent variable is the variable being tested and measured in a scientific experiment.

Dependent variables depend on the values of independent variables. The dependent variables represent the output or outcome whose variation is being studied.