Glenn Linderman wrote: > Someone posed the question to me, if they could use their scanner for > grading multiple choice tests. This is for someone in a volunteer > teaching position in one of the less advanced, poor countries, but they > do have an image scanner available. So I'm not a real expert in > graphics manipulation and analysis, most of what I do in the way of > graphics is generating print images for books, so I mostly use > ImageMagick to help with some of the manipulations, but they are > simple... crops, resizings, adding margins, and the like.
If your purpose is to use the scanner, then yes, you probably could do as you describe. Having written that, a simple mask sheet of paper, with a hole where every correct answer dot should be may well be faster and easier. BTW, I've never seen a multiple choice test with partially correct answers. You get the answers right or you get them wrong. I had a fluid dynamics class where the prof only gave multiple choice tests. He'd grade your test on the spot using a mask sheet as I described--only took a few seconds. His motto was "I don't care how you get there, as long as you land at the right airport." So, guessing was advised if your computations didn't result in any of the offered choices. At the time, I didn't like the lack of partial credit. Now though, I know he was absolutely correct--in life, you either get the right answer or you don't. -- David N. Lombard Rossmoor, Orange County, CA _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
