Laturi-guide

Turnitin – text similarity detection

Turnitin is a program for checking the originality of texts. It checks the student’s text against a large international database of articles, journals, books, websites and theses, and looks for similarities between the student’s text and the sources in the database. It gives feedback in the student’s text, where the similarity to the texts in the database is indicated as a percentage.

FAQ - TurnitIn

How should I interpret the Turnitin analysis?

It is important to remember that similarity does not necessarily indicate plagiarism! The similarity percentage is always proportional to the length of the text, i.e. for short texts the percentage can be much higher than for long ones. The similarity report also includes correct quotations and the list of references, which naturally increases the percentage. Achieving zero percentage is not required, as it can even be impossible to achieve. Turnitin Similarity is meant to be used as a tool to correct and help in the writing of academic texts, as well as detect intentional plagiarism.

Read Aalto University’s Instructions on how to interpret the Turnitin Similarity report 


I wish to have my thesis checked in Turnitin before submitting it into Laturi. Is this possible?

At the moment it is not possible to have a thesis checked in Turnitin in advance.


Turnitit rejected my thesis. What does it mean?

The error message ”error TOO LITTLE TEXT” usually means that in the conversion of the thesis into PDF/A format, the text of the document has been saved as an image, and Turnitin is unable to analyse image content. If you get this error message, request permission from your supervisor to resubmit the thesis into Laturi. Convert your thesis into a PDF/A file that Turnitin accepts (fonts are included in the thesis) and resubmit the file into Laturi.