Two stories of my personal exploits on Multi Guess exams.
At St Athan on my electrician's fitter course we had a monthly test on the main topic that we had covered that month. It was well known that the tests were the same as all the previous courses had done, so there were plenty of cheat sheets going around. For one of these tests there were only the answers for the first 80% of the questions and one over achiever duly marked these on his paper and blindly entered anmswers for the remaining questions. Of course he ended up with 100%. I don't think the instructors were unaware of these sheets, as at the 3 month test a lot of these people were found out as the exam questions were chosen from a large range of questions and there were several different test papers and you didn't know which one you would get. I also got !00% on one of these tests, the one on induction, and I was given looks from the rest of my course as to why I hadn't shared the cheat sheet with them. None of them believed I had actually done it without one, but I like to think the instructor knew the truth.
2nd year at secondary school and we're taking exams to see what we could do for 'O' levels for the following 2 years. Sitting the physics exam I was sitting next to someone who was also good at the electrical side of the subject and I had actually partnered for some of the experiments. When I say partnered, he took on the role of knowing and doing everything and I cleaned up afterwards. Part of the physics course back then along with electrical theory, was mechanics and waves, something this character wasn't so good on. Come the exam and we just happen to be sitting next to each other. Memory fails me a bit here, but I think there were a set of 5 topics to be answered, 2 related to electrical and mechanical and one on waves. and we could chose to answer any 4 of the topics to answer the questions on. A no brainer for me, the 2 electrical topics, the waves then the mechanical, ( I wasn't so hot on the mechanical side of physics). So duly doing the 2 electric parts, no problem and onto the waves. I happened to look over to this olther guy and he's copying my answers and the evil little barsteward in me starts to put the wrong answers in the boxes which he duly copies and then heads up to the teacher to hand in his exam, probably the first to do so. Meanwhile I went back and altered my answer sheet to what I thought were the correct answers.
A few weeks later the results are in, I passed and was able to do 'O' level physics, (thank you wave theory). Matey however has failed and I had the questioning looks from him and I just knew he was dying to ask how I had passed as he'd copied my answers. His mother and father come to the scool to see "The Heady" and get him onto 'O' level physics, but the headmaster was having none of it. I did meet him years later in the RAF, where he was an Aircraft Electrician.