Which logical fallacy is used in the text? Since Kate Wilkinson became vice president of the parent-teacher association, student performance has declined and teacher morale is down. We on the school board believe that Wilkinson bears sole responsibility for the downtrend. false causation: the assumption that because two things happened together. one caused the other ad hominem; a personal attack against one's opponent straw man: a misrepresentation of an opponent's position that makes it easier to argue against