Turnitin.com – How good is it at identifying plagarism?
Would you submit your paper to Turnitin.com?
It sounds like a useful tool for aiding teachers, professors, and college admissions staff in identifying essays that have been plagiarized. According to the website, Turnitin.com (“Turn it in”), “Ensures original work by checking submitted papers against 17+ billion web pages, 200+ million student papers and leading library databases and publications.”
Turnitin.com is a useful tool, when used correctly. Let me say that caveat again, when used correctly. The website searched thousands of databases and will identify phrases, sentences, and paragraphs that appear verbatim elsewhere. And there is bound to be phrases and even sentences that could be identified as plagiarized because they are commonly written together. “The boy walked the dog to the park,” is a sentence of my own creation. But if someone turned in a creative writing piece with the same sentence, it could potentially be flagged as plagiarized. The fact of the matter is, I could submit a three page essay to Turnitin.com and because of these common phrases, the resulting percent given by Turnitin.com for how much of my paper is plagiarized could be as high as 30%. [This actually is the average percent I've received on work that I wrote myself.]
Turnitin.com emphasizes that it only identifies potential issues and it is up to the teachers, professors, and admissions staff to look at what was flagged and make a judgement call. If multiple sentences in a row or paragraphs have been plagiarized, then there is an issue. But those grading the papers (or the ones writing them) should expect a 0% plagiarism score. TurnitIn.com’s blog Words & Ideas wrote:
There is a very distinct difference between what Turnitin flags as matching text (aka: similarity index) and plagiarism. Turnitin will highlight ANY matching material in a paper—even if it is properly quoted and cited. Just because it appears as unoriginal does not mean it is plagiarized; it just means that the material matches something in the Turnitin databases. We leave it to the instructors to look at a paper and the originality report to make the determination of whether or not something is plagiarism, and to what extent—intentional plagiarism, unintentional plagiarism, improper/lack of citation, or mere coincidence. Best practices from instructors suggest that Turnitin OriginalityCheck be used as a teaching tool to address citation and academic honesty, not only as a punitive tool.
As I somewhat mentioned, admissions staff are now able to use Turnitin.com to identify plagiarized admissions essays. This helps admissions staff make well-informed decisions about candidates when there are more applications than spots available. A recent article in the Los Angeles Times details how admissions staff members have used Turnitin.com.
The student’s admissions essay for Boston University’s MBA program was about persevering in the business world. “I have worked for organizations in which the culture has been open and nurturing, and for others that have been elitist. In the latter case, arrogance becomes pervasive, straining external partnerships.”
Another applicant’s essay for UCLA’s Anderson School of Management was about his father. He “worked for organizations in which the culture has been open and nurturing, and for others that have been elitist. In the latter case, arrogance becomes pervasive, straining external partnerships.”
Sound familiar? The Boston University student’s essay was written in 2003 and had been posted at businessweek.com. The UCLA applicant was rejected this year — for plagiarism.
So should you force your students to use Turnitin.com? With the exception of a district-wide or school-wide policy, the choice is yours. But be sure to educate your students before you have them upload their paper to Turnitin.com. The last thing you want is angry parents (or students) complaining about how the paper is original yet it came up 20% plagiarized. Some parents make not accept this from their child and punish them because they don’t understand what Turnitin.com does and doesn’t do. And of course, DO NOT punish students simply based on the numerical score. Review the paper and the flags yourself. Plagiarism is taken very seriously so be sure you have your evidence before you accuse someone of plagiarizing.
