The online services, including Turnitin and SafeAssign, run students' assignments through massive databases to detect whether a student plagiarized material from Internet sources or other students, the New York Post reported Saturday.
During the 2010-2011 school year, 173 New York City students were suspended for "scholastic dishonesty," including plagiarism, cheating on tests and "collusion" on papers, spokeswoman Marge Feinberg said, which was up from 146 suspensions in 2009-10.
"It's very easy to cut and paste," said Teddi Fishman, director of the Center for Academic Integrity at Clemson University in South Carolina.
Turnitin charges schools $2 per student for its services.
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