Let me make it clear, I do not have a problem with automatic grading, in principle. Actually, any grading that does not involve thinking can be robo-graded (like multiple choice, matching, or filling in blanks). However, when thinking is needed, I am more hesitant to just hand grading over to a stranger or a machine. My impression is that the robo-grading described in the article is purely a cost cutting measure.
It is true that professors are not very consistent both within and, especially, between themselves when it comes to grading. If professors set the rubrics and review the inter-rater reliability, what is wrong with hiring others to do the actual chore of grading or even automating it?
Consistency does not equal quality. In principle, "objective" grading is best. as for machine grading, I am not sure there is an algorithm out there that can grade content well (such as how good the narrative is, how solid the line of reasoning is, and so on). As for "objective" outside human graders, as long as they are as qualified (or better qualified) and PAID than the instructor, no problem. My feeling is that in order to get the graders to be "consistent", they just have them grade basic style. That is fine if the course is a rudimentary writing class.
I also think that most professors are quite consistent in their grading. Granted, there may be less consistency across different courses, but they are different courses. I would like to see results from actual studies that clearly demonstrate that robo-grading is BETTER (not just "more consistent") than grading done by instructors who actually teach the course.
This sounds like a highly organized approach to TA grading on the one hand and the automation of that chore on the other. I don't get the controversy.
1. Having re-read the article, it sounds like the main reason for robo-grading is cost cutting and not ensuring "quality" and "objectivity".
2. I am also not a fan of pawning everything off on TAs, BUT, the TAs are at least aware of what the instructor is teaching (or should be). A stranger who gets a bunch of papers and is paid by the paper
3. Graders should be AT LEAST as qualified as the average professor and PAID accordingly. Until and unless the graders are treated as valuable employees of the institution
4. I would really like to see the average grades given by outside graders. I also want to know how long a harsh grader is kept. After all, one of the arguments is that traditional grading involves tremendous grade inflation ... an issue that should not plague outside graders.
5. Is there a study demonstrating that graduates of a program that uses only robo-signing are much better at writing than their non-robo-graded peers?
So, it is possible that the model described in the article is better than traditional essay grading IF:
1. The main driver is not cost-cutting.
2. The grader is very familiar with what the instructor is teaching.
3. The grader is very well compensated for the work and is AT LEAST as qualified as an instructor should be.
4. The grades given by the "objective" graders are tougher than grades given by instructors.
5. The data should back up the claims. The results should speak for themselves.