<p>Hi guys I had a question regarding the F-158 scantrons. Has anyone had a midterm back, and found eraser marks to be the result of wrongly marked answers?? I use to have this problem in H.S. where on the green scantrons, eraser marks can easily mark 5-6 of them wrong, if they are not erased well. Does the same rule apply to the red F-158 scantrons?? Has anyone had an experience where it marked the right answers wrong, simply because they had eraser marks on a previous selection??</p>
<p>I'm thinking about running a test at school, to buy a scantron, and ask someone at the office if I'm allowed to run one, if I can setup a key, and run the scantron to see how many it marks incorrectly, had I erased badly on lets say 50 questions. Would they allow students to run scantrons??</p>
<p>It really wouldn’t prove anything except that you couldn’t erase well. </p>
<p>Most teacher only take the final score on the scantron because once you get the scantron back how easy would it be to change the answers you got wrong to the correct one and claim eraser error or the machine read it wrong</p>
<p>A lot of times professors will return you scantron to you digitally so you can check for mistakes like this. Sometimes they also let you come in and look at your scantron. I have never had a problem where I got one wrong that erased and changed to the right answer(and I erase frequently, get a good eraser!).</p>
<p>Usually, errors with scantrons will be uniform, and so they if have a considerable amount of students come in and check their scantrons, and most have the same error, then they will fix it, and will know if you tried to cheat them or not.</p>