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.
Correct Answer:
Verified
Correct Answer:
Verified
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