Multiple Choice
If it is unethical to manipulate a variable, then:
A) you cannot examine it.
B) you cannot examine it with a nonexperimental design.
C) you should not and cannot examine it with an experimental design.
D) you can use either a nonexperimental or experimental design, but you need Institutional Review Board (IRB) approval.
Correct Answer:

Verified
Correct Answer:
Verified
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