Forty to 60 percent of students report, in anonymous surveys, that they plagiarized at least once as undergraduates, and evidence indicates that plagiarism also occurs in our medical and business schools. Researchers have found that students who plagiarize are more likely to engage in subsequent professional misconduct such as falsified research results and fraudulent business practices. Thus, a reduction of academic plagiarism will lead to a reduction of professional misconduct.
Which one of the following most accurately describes a flaw in the reasoning in the argument?The argument shows an association: students who plagiarize are more likely to later commit professional misconduct. But it then concludes that reducing plagiarism will reduce professional misconduct.
That assumes plagiarism causes later misconduct. The evidence shows only correlation, not
causation.
(A) The argument relies on the accuracy of reports by people, some of whom, in the nature of the case, cannot be relied upon to provide truthful testimony.
Wrong. The surveys are anonymous, and the main flaw is not about whether students lied in the surveys.
(B) The argument introduces one subject for debate, but proceeds to give premises relevant to a different subject.
Wrong. The premises are relevant. They connect plagiarism with later professional misconduct.
(C) The argument presumes, without providing justification, that a certain phenomenon is the only factor contributing to the incidence of a certain other phenomenon.
Wrong. The argument does not need plagiarism to be the only cause of misconduct. It only claims reducing plagiarism will reduce misconduct.
(D) The argument takes for granted that a certain behavior is more prevalent among members of one population than it is among members of another.
Wrong. The argument does not compare plagiarism rates across two populations in this way.
(E) The argument infers the existence of a causal connection merely on the basis of an association.
Correct. The fact that plagiarists are more likely to commit later misconduct does not prove that plagiarism causes that misconduct. Some other factor, such as dishonesty or weak ethical standards, could cause both.
Answer: (E)