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Colleges Stepping Up Anti-Cheating Technology
Bruce Schneier's blog highlights a New York Times piece on high-tech methods for detecting student cheating. Schneier notes, "The measures used to prevent cheating during tests remind me of casino security measures." "No gum is allowed during an exam: chewing could disguise a student's speaking into a hands-free cellphone to an accomplice outside. The 228 computers that students use are recessed into desk tops so that anyone trying to photograph the screen — using, say, a pen with a hidden camera, in order to help a friend who will take the test later — is easy to spot. Scratch paper is allowed — but it is stamped with the date and must be turned in later. When a proctor sees something suspicious, he records the student's real-time work at the computer and directs an overhead camera to zoom in, and both sets of images are burned onto a CD for evidence." The Times article quotes from research published a few months back suggesting that the more you copy homework, the lower your grades.
My brother in law, an economics professor, recently had to grade a paper from the freshman class he was teaching. He found that virtually every paper had the same ideas in the same sequence, and frequently the exact same wording (I.E. cut-and-paste). Even more interesting, and disturbing, he found that by comparing the texts they could be roughly grouped by the race of the student.
His theory is that the current generation is so used to forwarding, re-tweeting, re-blogging, and re-posting that they literally don't see it as cheating.
I suspect there are serious cultural differences regarding cheating. For example: at my university, the Indian comp-sci students all knew each other and held regular "study sessions." I was once invited to one. I was amazed to observe that it was simply a highly-organized cheating exercise. These guys had graded homework assignments and exams from all classes, and they passed them around, casually copying solutions verbatim to their homework assignments and recording exam answers. They begged me for all of my exams and homework assignments from current and previous tests so that they could add them to their collection. And they didn't see anything wrong with this.
What I found particularly amusing was how amazed they were at my abilities at coming up with solutions when we had non-trivial group projects. "How did you know that would work?" they would ask. I had to try hard to avoid saying "I don't cheat so I have to actually understand the material to pass the classes."
A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
We have a lot of foreign grad students, Indian and Chinese in particular. Well something I notice especially with the Chinese students but the Indian ones to an extent as well is the idea that all knowledge is something that someone already has. If you do not know the answer to a problem, the correct course of action is to seek out the person or book that does. Everything is already known, you just have to find who knows it. The idea of problem solving is one they don't grasp.
So their computer will break (that's what we do, we are the systems and network support) and they'll come and ask us about it. They get vexed when we say "I don't know what is wrong," they often look at you like you are an idiot, and why don't you go find the person who does?
I remember one time when a lab lost network connection so I was heading down there and he says "Why is the network down?" I said "I'm not sure," that got me a very quizzical look. So we got there and I said "Where's the switch, let's reboot that first," he said "Will that fix the problem?" I said "I don't know." He didn't seem to want to do it, since why bother if it wouldn't fix the problem? I found the switch, rebooted it, and the problem was solved. This was a totally mysterious process to the guy. How the hell could someone who didn't know what the problem was solve it without asking someone who did?
There does seem to be a cultural difference with this, and I think it comes down to the education system. My mom went to teach English in China for about half a year (she used to be a teacher in the US) and said that their version of teaching English was route memorization. Students were presented with a couple hundred phrases per night they were expected to memorize. That was it. Needless to say, that works for shit. The Chinese government realizes it doesn't work very well, which is why they bring in US English teachers, but it is fighting against a cultural attitude of eduction through memorization. Mom said the teachers were very skeptical of her methods (which did not include memorization).