Table 3.

Psychometric properties.

Psychometric properties	ORR-LDR	MDT-OS
Ceiling effect (percentage)	0%	0%
Floor effect (percentage)	0%	0%
Skewness	0.32	−0.07
Kurtosis	3.04	2.84
Range	5–22	−0.09–0.78
SD	3.44	0.16
ICC (single sessions)	0.23–0.44	0.48–0.66
ICC (average of two sessions)	0.70	0.82

SD, standard deviation; ORR-LDR, Object-in-Room Recall Task; MDT-OS, Mnemonic Discrimination Task for Objects and Scenes.