All of the following will cause an identification challenge except for what?

A. Imperfect multicollinearity
B. The treatment variable is correlated with the error term.
C. Perfect multicollinearity
D. A control variable is correlated with the error term.


Answer: A

Biology & Microbiology

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A visitor to an American tropical forest will probably never get to see a jaguar, the largest native cat species in the Americas, but will see many plant-eating monkeys

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