In an era of online learning, a new RPI testing method aims to reduce cheating

Rensselaer County

TROY, N.Y. (NEWS10) — In an era of remote learning due to COVID-19, educators are concerned about an increase in cheating among their students, as discussed by the Washington Post. With concerns on the rise, Rensselaer Polytechnic Institute created a solution that also maintains student privacy.

In research published on March 1 in npj Science of Learning, engineers from RPI demonstrate how a testing strategy they call “distanced online testing” can effectively reduce a student’s ability to receive help from others while testing outside of the classroom.

“Often in remote online exams, students can talk over the phone or internet to discuss answers,” said Ge Wang, an endowed chair professor of biomedical engineering at Rensselaer and the corresponding author on this paper. “The key idea of our method is to minimize this chance via discrete optimization aided by knowledge of a student’s competencies.”

When a distanced online test is performed, students receive the same questions, but at different times depending on their skill level. For example, students of the “highest mastery levels” receive each question after other groups of students have already answered those questions.

This form of testing, Wang said, reduces the ability for students to receive help from those who have a better grasp on the material. In order to determine how students receive the questions, their competence levels are determined using their grade point averages, SAT scores, or midterm scores, depending on what is available at a specific point in the semester.

According to statistics and post-exam surveys, this method reduced the points gained through “collusion” of students in comparison to more traditional testing. As an added benefit, Wang said, when students knew they could not collaborate with others, they were more motivated to study the material. Wang and his collaborators hope to share this technology beyond Rensselaer .

Copyright 2021 Nexstar Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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