Others may disagree, but screening seems to be used simnifically less in the field of Radiation Oncology because of the smaller number of applications that PDs need to sift through. The general feeling is that it is a much more "whole picture" kind of field, which can be difficult for potential applicants who want specific numbers on things. At most of the programs I have had experience with, Step 2 was looked at only if it was significantly better or worse than the Step 1 score. Many applicants in radiation oncology still only take/publish their scores if they feel they need to make up for Step 1 scores.