Turnitin is a program for checking plagiarising and similarities in texts.
How does Turnitin work
Turnitin compares written text to an extensive international database of articles, journals, books, websites, and theses, and looks for similarities between the submitted text and the sources in the database. Turnitin provides a feedback report which includes a similarity index (percentage), which demonstrates how much similarities can be found between the submitted text and the texts in Turnitin databases. By interpreting the report, it can be deduced whether the text has been plagiarised or not.
When using Turnitin
It is important to remember that similarity does not necessarily mean plagiarism. The percentage is always proportional to the length of the text. Short texts can demonstrate a higher percentage than a longer text. Quotations and reference list (bibliography) are also taken into account in the report, which also increases the similarity percentage.
There is no need to aim for zero percent; it may even be impossible to achieve. Turnitin is specifically designed to correct and assist in the writing of scientific text, as well as to expose intentional plagiarism.
Turnitin is integrated into Moodle: teachers use it to review assignments, reports, or theses. Texts submitted to Moodle by students can automatically go through the Turnitin process. Students usually submit their own texts to Turnitin only if the teacher has assigned a specific Turnitin assignment.