Figure 8

The relationship between the raw mark on the examination and the FACETS adjusted mark which takes examiner stringency and station difficulty into account. The pass mark for the examination is indicated by the dashed lines and has been set at 40.5 (see text; i.e. between 40 (fail) and 41 (pass)). Candidates marked in black fail the exam using both raw and adjusted marks, and candidates in blue pass the examination using both raw and adjusted marks. Candidates in green pass the exam on the basis of their raw mark but fail on the basis of the adjusted mark, and candidates in red fail on the basis of their raw mark but pass on the basis of their adjusted mark. The inset figure shows a magnification of the region around the pass mark. It should be noted that a small amount of random horizontal jitter has been applied to the raw marks (which have to be integers) so that the data points are more easily seen.