There has been a bit of a splash in the last few days, publicity regarding a study of Turnitin by Susan Schorn of the University of Texas.
iSchoolGuide, for instance, splashed an item by Sara Guaglione: University Of Texas At Austin Writing Coordinator Susan E. Schorn Finds Turnitin Software Misses 39 Percent Of Plagiarized Sources, and EducationDive posts a similar take on the story, this by Tara García Mathewson, Plagiarism detection software often ineffective.
There is not a lot new here, not for regular readers of this blog. Turnitin is ineffective.
Both articles are based on a post in InsideHigherEd by Carl Straumsheim, What Is Detected? worth reading, for its content and for the comments it has generated. Again, not a lot new, not for regular readers of this blog. Turnitin is ineffective (as are other so-called plagiarism detectors, it is not just Turnitin which is problematic).
Straumsheim goes further (than Guaglione and Mathewson), pointing to Turnitin’s propensity to assign false negatives Continue reading