What Is Meant by "Control of Extraneous Variables

question 26

Multiple Choice

What is meant by "control of extraneous variables"?

• A) The intervention variable must be delivered by the researcher.
• B) Only measurement instruments with established levels of validity should be used.
• C) Research participants should refrain from expressing their thoughts until data collection is over.
• D) Elimination, distribution, or holding steady variables that could influence the results even though they are not of interest in the study.

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