Table 4.

Correlation coefficients between the tests and the retests

	Overall		Patient		Healthy controls
	R	P	R	P	R	P
SDMT	0.814	<0.001	0.862	<0.001	0.714	<0.001
CVLT-II	0.892	<0.001	0.904	<0.001	0.792	<0.001
BVMT-R	0.828	<0.001	0.869	<0.001	0.706	<0.001

SDMT symbol digit modalities test, CVLT-II California verbal learning test II, BVMT-R the brief visuospatial memory test revised