Multiple Choice
Why is it the case that an instrumental variable is not found directly in the determining function?
A) If an instrument is exogenous, then it has no effect on the outcome beyond those already in the determining function.
B) If an instrument is relevant, then it has no effect on the outcome beyond those already in the determining function.
C) If an instrument is exogenous, then it has an effect on the outcome just not a statistically significant one.
D) If an instrument is relevant, then it has an effect on the outcome just not a statistically significant one.
Correct Answer:

Verified
Correct Answer:
Verified
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