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Digital cheats prompt return to traditional testing methods

Author
RNZ,
Publish Date
Tue, 15 Oct 2024, 3:44pm

Digital cheats prompt return to traditional testing methods

Author
RNZ,
Publish Date
Tue, 15 Oct 2024, 3:44pm

By John Gerritsen of 

Some university departments are reverting to pen and paper for their end-of-year exams because of the difficulty securing digital exams from cheats.

Auckland University computer science senior lecturer Dr Ulrich Speidel says universities are generally not doing enough to ensure online exams were secure.

He says he has detected students running two computers on one machine to evade automated proctoring, smuggling questions to outside helpers, or sitting in exam rooms while someone outside or even in another country did their exam for them.

鈥淲e鈥檝e seen all of these techniques used in the wild to cheat,鈥 he said.

Speidel estimated 40-50% of his classes would cheat if he left 鈥渁ll doors open鈥, and the percentage steadily decreased as he imposed measures such as holding exams on campus and using 鈥渇light-mode鈥 internet connections in computer laboratories.

鈥淚f they then start to realise that we do actually prosecute people who we see logging in from outside the laboratory, then again word gets round and numbers go down a little bit and in the end you end up maybe with a couple of people who will still try it in a large class, but it鈥檚 no longer the sort of significant double-digit percentages that you鈥檇 otherwise see,鈥 he said.

He said universities were not taking the problem seriously enough.

鈥淚 think that鈥檚 actually a sector-wide problem. Partly I think that鈥檚 come out of a simple lack of awareness that this is possible.

鈥淭here鈥檚 always that one application on a complex system that gets installed that gets a way that you haven鈥檛 thought of that provides a way in and out.鈥

Speidel said even secure Wi-Fi connections and 鈥減roctoring鈥 systems 鈥 which used students鈥 webcams to monitor their movements during online exams 鈥 could be hacked or circumvented.

He said running a totally watertight digital exam was so hard, it was not worth the effort.

鈥淲hat I鈥檇 like to really see changed is return to pen and paper as much as possible under invigilation. That鈥檚 a mode that鈥檚 pretty much still working and still working well and has served us well for many, many centuries,鈥 he said.

Professor Stephen Marshall, the director of Victoria University鈥檚 Centre for Academic Development, said the advent of online exams and ChatGPT had resulted in an increase in misconduct, although it was hard to gauge how much.

鈥淧eople have often badly underestimated how much cheating or misconduct has been occurring historically. The literature over the last 30 or 40 years talks of levels of misconduct across all of the assessments we do at university running at somewhere between 10 and 20% of all assessments. So it鈥檚 much higher than people think it is as a baseline,鈥 he said.

Marshall said the technical requirements for securing digital exams were so high, many departments did not bother with them.

鈥淚ncreasingly what we鈥檙e seeing is people requiring students to be on premise and doing that in print with pen and paper because the minute you bring any technology into the space, the threshold of support we need, the necessity to put in quite expensive tools and systems to wrap around it so that we鈥檙e controlling that environment it鈥檚 problematic to deliver that.鈥

Marshall described automated proctoring, which used the cameras on students鈥 computers to monitor them while they sat online exams, as 鈥渂rittle鈥 and 鈥渃reepy鈥, and with a very few exceptions, Victoria did not use it.

He said automated proctoring had to function on a wide variety of computers of different ages with different operating systems and on top of that the systems created tension for already-stressed students.

If something went wrong, that stress would increase even further, he said.

鈥淭he technology you need to deploy on to their device is incredibly invasive ... technically quite difficult to put into place.

鈥淭echnically they are quite likely to fail so the probability as you multiply that out against a large number of students that some of them are going to have a situation that interferes with their ability to take the test gets quite high.鈥

Marshall said some faculties no longer used exams at all, while others offered 24-hour take-home online tests.

鈥淭he use of the big end-of-course test is already in decline and has been for some time,鈥 he said.

He said exams at Victoria this year looked more like the exams of six or seven years ago 鈥 before the pandemic brought a boom in the use of online exams.

Massey University said it was still considering and working on recommendations from an independent review of the failure earlier this year of its online supervised exams.

It said online supervised exams (OSEs) would not be used in Massey鈥檚 end-of-year exams or Summer School.

鈥淎n existing academic working group is also considering the longer-term future of examinations, and we are currently working through assessment options for Semester One 2025 and beyond.鈥

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