Table 1.

MCAT vs UCAT: root mean square error (RMSE) and item count

Cutoff	RMSE		Mean Number of Items
	MCAT	UCAT	MCAT	UCAT
0.200	0.232	0.289	24.000	19.921
0.225	0.233	0.294	23.860	17.712
0.250	0.239	0.284	20.956	15.202
0.275	0.243	0.287	16.293	12.754
0.300	0.241	0.317	13.224	10.596
0.325	0.244	0.365	10.796	8.870
0.350	0.257	0.377	9.232	8.384
0.375	0.278	0.389	7.850	7.914
0.400	0.299	0.424	6.860	6.934

N = 406. RMSE: root mean square error; MCAT: multidimensional computer adaptive test; UCAT: unidimensional computer adaptive test.