Question: Question 9 Ways in which a researcher can control for extraneous variables (enhance internal validity) in a CORRELATIONAL/OBSERVATIONAL study include all of the following EXCEPT

Question 9 Ways in which a researcher can control for extraneous variables (enhance internal validity) in a CORRELATIONAL/OBSERVATIONAL study include all of the following EXCEPT Using a homogeneous sample Using analysis of covariance Matching subjects Randomizing subjects to groups

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