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.
Conclusion (thus)
Reducing academic plagiarism will lead to a reduction of professional misconduct.
Evidence
Students who plagiarize are more likely to engage in subsequent professional misconduct than are those who don't.
Evaluate
This is trying to disguise an age old problem, but it's just presenting a correlation between X and Y in the evidence and then concluding something that implies that the author thinks that X causes Y.
Our best chance of catching these Causal flaws is making sure we're sensitized to more likely / less likely type correlation language. The most common way to hear a correlation expressed is something like, . From there, it's almost a guarantee that the author will end up assuming that A causes B or B causes A.
Since plagiarizing in school is correlated with professional misconduct later, the author assumes that plagiarizing in school has some causal influence on whether or not someone will engage in professional misconduct later.
Whenever we're evaluating these moves from "X and Y are correlated" to "X causes Y", we want to consider Alternate Explanations such as Reverse Cause (maybe Y causes X) or Third Factor (maybe both parts of the correlation are connected to Z).
In this conversation, Reverse Causality is off the table. We can't say that their professional conduct later in life is what caused them to plagiarize back when they were in school.
But, we could definitely try to explain the correlation in relation to a Third Factor. Maybe people who have low moral integrity, or people who had criminal parents, or people who have Impostor Syndrome and don't think they're as qualified as their peers are more likely both to plagiarize in school and to engage in professional misconduct during their career years.
Preventing them from plagiarizing in school won't change the root cause of their professional misconduct later.
Goal
Look for an answer formally complaining that the author has inferred a Causal relationship from a mere Correlation. Or look for something saying the author assumes that , or an answer that poses an alternate explanation for the correlation, like .