Improving the ability to discriminate medical multiple-choice questions through the analysis of the competitive examination to assign residency positions in Spain

Table 3 Mean values, standard deviations, and medians of the variables iDifCorr, rpbis, and Discrimination R for different question types

Question Type	N	Mean iDifCorr	Std. Dev iDifCorr	Median iDifCorr	Mean rpbis	Std. Dev rpbis	Median rpbis	Mean Discrimination R	Std. Dev Discrimination R	Median Discrimination R
Clinical Case	1326	0.5758	0.2733	0.6377	0.3074	0.1279	0.3225	0.8028	0.469	0.752
CC with Image	393	0.5281	0.2937	0.5754	0.2613	0.1103	0.2689	0.6355	0.3542	0.6033
Negative	445	0.5102	0.2973	0.5465	0.2891	0.1319	0.2951	0.7341	0.4474	0.6712
Test	726	0.5255	0.3009	0.580	0.2963	0.1274	0.3127	0.7752	0.442	0.7422
Total	2890	0.5466	0.2881	0.6083	0.2955	0.127	0.3075	0.7625	0.4481	0.7115

ISSN: 1472-6920