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Dale Wants to Design a Good Experiment and Be Sure

Question 189

Multiple Choice

Dale wants to design a good experiment and be sure there are no confounding variables.In other words, Dale wants to avoid:


A) an uncontrolled variable that changes systematically with the independent variable
B) an uncontrolled variable that changes systematically with the dependent variable
C) a controlled variable that changes systematically with the independent variable
D) a controlled variable that changes systematically with the dependent variable

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