Table 4.

Area under receiver operating characteristic curve (AUC) and relative 95% CI for total and per subject area scores

	RS1 AUC (95% CI)	RS2 AUC (95% CI)
Total	0.67 (0.63 to 0.71)	0.70 (0.64 to 0.76)
Biology	0.61 (0.57 to 0.66)	0.62 (0.56 to 0.68)
Chemistry	0.65 (0.61 to 0.69)	0.63 (0.57 to 0.69)
General culture	0.55 (0.50 to 0.59)	0.57 (0.51 to 0.64)
Physics and mathematics	0.63 (0.59 to 0.68)	0.63 (0.57 to 0.69)
Logic	0.54 (0.50 to 0.60)	0.59 (0.53 to 0.65)