Use the MOSS (Measure Of Software Similarity) tool to quickly detect plagiarism amongst your students.

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  • MOSS catches simple tricks like variable and parameter renaming.
  • MOSS reports that X% of Student A’s submission is a match for Y% of Student B’s submission.
    • It produces a side-by-side mapping of Student A and Student B’s code, with matching sections highlighted in color.
    • Typically, a potential case of plagiarism will result in over 50% matching, while a non-plagiarism case will be around 10-15% matching.
  • Check out the free MOSS tool for more information.
    • Note from the CS Teaching Tips Team: MOSS is compatible with C, C++, Java, C#, Python, Javascript, Lisp, Scheme, Matlab, and more!
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