The above presentation can be further simplified by removing duplications. It now only relates the scores obtained from the two methods of scoring, RMS and KJS.
KJS scores are composed of a quantity score and a quality score; percent of right marks on the test and percent right of marked items; knowledge and judgment. The exact same values are available from Power Up Plus (PUP) and from Winsteps Table 17.1. [RMS = RT/N; Quality Score = RT/(RT + WG); and KJS = (N + RT - WG)/2N] But how are these scores related to measures?