"…is going to be a lot harder to detect than they think it is going to be," said Professor Roberts, who wrote a paper in 2002 on the "strategies of using technology in the teaching of ethics."
"Programs are idiosyncratic as sentences and no two are alike," he said. "They are not even comparable if they are independently generated. It’s particularly easy to detect if they’ve been copied."
Most of the violators come from introductory classes.
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