10
QuizMultiple Choice

Scientific Measurement — Unit test

Question 10 • (Rogowski)WCA 4321 Environmental Science 1st 9 weeks 26-27

An independent variable is

Answer
A
directly changed by the experimenter.
B
manipulated by changes to the dependent variable.
C
a variable that is kept constant.
D
a variable that is used as a control.

Explanation

An independent variable is the factor the experimenter deliberately changes to see whether it affects the results. The dependent variable is what is measured in response. Therefore, the correct choice is “directly changed by the experimenter.”

AI-written and checked against the verified answer.

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