Shery asked her sociology professor not to flunk her for cheating on the term paper that was worth 30% of the grade. She said if she got an "F" that she'd lose her scholarship. That'd really be a hardship on her; therefore Dr. Fiorentino should let her pass the class.

Sheryl is conducting ad misericordiam

Explanation:

Ad millisecond is a form of fallacy that being made to influence a person's support by exploiting the feeling of guilt. It's often used as a way to get out of a certain problem by showing  information that can invoke pity even though that information has nothing to do with the problem itself.

This can be seen In the case above. Shery tried to exploit Dr. Fiorentino's guilt by stating that she might lose her scholarship if she's being punished for her cheating behavior.

answer; researchers typically cannot control people's sexual behaviors as would be necessary in an experiment;