<story><title>How to Catch a Cheater</title><url>http://nerdlife.net/how-to-catch-a-cheater/</url></story><parent_chain></parent_chain><comment><author>WillyF</author><text>During my Freshman year of college (2002), I was taking Econ 101. It was a class of probably 500 students, and our tests were multiple choice. By the time I got back to my dorm room, the answers to the test were always up on the course website (I&apos;m not sure when they actually were posted).&lt;p&gt;After the first two tests, the professor must have noticed that something wasn&apos;t right. I finished the third test quickly, and was pretty confident that I had done extremely well. We used scantron sheets for our answers, so we got to take the paper with the questions home after the test. I had marked all of my answers on both sheets, so I loaded the course website and started checking my answers.&lt;p&gt;My heart sank as I went through the answers. Somehow I had managed to get every single question wrong. I figured that there must have been something wrong with the answers, and when I matched the answers (not the letters), I realized that I had actually gotten every question right.&lt;p&gt;The prof swapped the letters, so the kids whose friends were texting them the &quot;answers&quot; got screwed. It was pretty funny, even if it increased my blood pressure for a little bit.</text></comment>
<story><title>How to Catch a Cheater</title><url>http://nerdlife.net/how-to-catch-a-cheater/</url></story><parent_chain></parent_chain><comment><author>dkarl</author><text>My AP (Advanced Placement) Chemistry teacher noticed some cheating on a major chemistry test we took.  The cheating was pretty obvious; some kids just decided they were going to fail the test so they might as well have some fun.  A week later, after a week of lecturing on a new section of the chemistry book and no mention of our scores, a student asked.  No, he hadn&apos;t graded the tests.  He was sorry, he had been really busy.  After that, students started asking him every day if he had graded the tests.&lt;p&gt;Two weeks after we had taken the test, he said, &quot;I have to come clean.  The reason I have not graded your tests is that I lost them and have been trying to find them for the last two weeks.  I&apos;m very, very sorry, it was entirely my fault, and as a result&quot; (he produced stack of paper from behind his back) &quot;you all have to retake the test right now.  Put your books away, take a test and two sheets of scratch paper, and start working.&quot;&lt;p&gt;We didn&apos;t have as many students sign up for the second semester of AP Chemistry.  Not many people failed the first semester, and scores in AP classes were given a full letter grade boost compared to regular classes, but students knew he wasn&apos;t messing around.  As a result, it was one of the best AP classes we had, and lots of kids got good scores on the AP test.</text></comment>