Many important educational questions can best be examined from an international and comparative perspective. For example, in the United States there is no nationwide certificate of completion of secondary education . This raises the question of what the advantages and disadvantages are of leaving such certification to each of the 50 states. Comparative education draws on the experience of countries such as Japan and France to show how a centralized system works, and what are the advantages and disadvantages of centralized certification.
So in order to provide feedback, the staff then have to read all the pieces of work and try to produce post-hoc justifications for why piece A was ranked lower than piece B. That is, they are putting in the same amount of effort as they would have done previously to marking the work, but they have no way of knowing that their post-hoc justification for the relative grade will result in feedback to the student which will improve performance. They might end up telling student A that they might have got a low score because they didn’t draw their argument together to give a definite conclusion, but we have no idea if the CJ hive mind does indeed value definite over hedged conclusions.