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OP-ED: Universities must stop relying on software to deal with plagiarism

Educational software – whether it’s a teaching aid or a program designed to help teachers with administration – is big business. The recent multi-billion dollar acquisition of Turnitin, a program that is used around the world to flag possible evidence of plagiarism, is further proof of this.

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But does this application mean that universities are actually dealing with plagiarism? Our research, conducted across South Africa’s public universities, suggests not. We found there was a reliance on software to identify plagiarism in ways that brought undesirable changes in students’ behavior. Turnitin was broadly used by universities – but its purpose was largely misunderstood. It was considered plagiarism detection software rather than what it actually is: a text-matching tool.

Turnitin and similar programs don’t deal with the causes of plagiarism. Rather, they allow institutions to claim they’re doing something without really tackling the issues that lead students to plagiarise.

Educational software provides a number of powerful tools for supporting the development of student writing. But when it is superficially used, as often is the case with Turnitin and similar programs at South African universities, that development is undermined.

Students should be taught how to write academically and to avoid plagiarism. Instead, they are being encouraged to write in ways that fool the software. This encourages an instrumentalist understanding of what constitutes academic writing. It portrays the academic process of writing as a technical endeavor – you must avoid the sin of plagiarism – rather than what it really is: a complex practice of knowledge production that draws on prior research.

Software lacks nuance

The software used by Turnitin and similar programs works by matching the text. It identifies instances where a paragraph or sentence or phrase in an essay is identical to one in, for instance, an academic journal article. It then generates a report with a “similarity index” percentage. This shows how similar the essay is to other pieces of work.

Unfortunately, many academics believe this percentage equates to degrees of plagiarism. At some South African universities, if the similarity exceeds a certain percentage, a student is automatically assumed to have plagiarised – and fails the assignment. They may also, depending on the institution’s plagiarism policy, face disciplinary sanction.

It’s important to note that Turnitin doesn’t claim its software detects plagiarism. The company encourages those marking student work to remember this and to apply their own discretion in deciding whether they’re dealing with malicious, deliberate plagiarism.

But despite that disclaimer, academics and students believe Turnitin is an accurate “plagiarism detector”. We have run staff and student development workshops about academic writing in institutions across South Africa, and in some other African countries. At such events, one question inevitably arises: “What is the acceptable percentage on the Turnitin report?”

By insisting that students achieve less than a certain percentage on a similarity report, universities encourage a “plagiarise, but don’t get caught” approach. Students are being encouraged to rework and resubmit their assignments, paraphrasing the highlighted similar text until their plagiarism evades the software.

This is not a solution to the problem of plagiarism. The act of plagiarism occurs along a continuum from intentional to unintentional. Certainly, some students may purchase essays from paper mills or may cut-and-paste because they think they can get away with it. These students must be punished. Intentional acts of plagiarism require swift, clear responses.

But a great many students plagiarise because they have never been taught about the norms of knowledge production in the academy.

Setting a percentage on the similarity index won’t help. Telling students that a percentage flung out by a piece of software can have enormous consequences for their progress is both nonsensical and educationally unsound. Universities must invest time and resources in developing students’ understanding of writing and knowledge production in different academic disciplines.

The software lacks human nuance. The similarity index alone cannot tell academics whether the phrases it highlights are deliberately plagiarised, are examples of formulaic statements required by the discipline, or are just poorly referenced. The Turnitin report only becomes meaningful when interpreted by an actual person.

The software also can’t identify plagiarism when the student has paraphrased someone else’s ideas and is passing them off as her own. For this reason, plagiarising students whose home language is the same as the medium of instruction is unlikely to be picked up by the software.

Use software better

Why do academics rely so heavily on software like Turnitin? A large part of the reason is probably the burden of growing class sizes. Academics have more students and less time. Writing development takes time. This may explain the abdication of responsibility for software programs.

Turnitin offers a range of capabilities. It can be used to show students how to build strong claims from multiple sources. But using it simply to detect and punish students entails a policing relationship at odds with learning.

Academics need support to understand how to use the software in developmental ways and universities need to resist calling for simplistic solutions to complex issues.The Conversation


Amanda Mphahlele, Lecturer, University of Johannesburg and Sioux McKenna, Director of Centre for Postgraduate Studies, Rhodes University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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