Table 1.

Item difficulties (mean values) and discriminative indices (item total correlations) of the 20 item factors and internal consistencies (Cronbach α) of the 4 subscales of EOmciSS^a.^b

EOmciSS item factors		Item difficulty	Discriminative index	Internal consistency (Cronbach α)
Trail making factor				.959
	TMc-Acc1	0.90	0.626
	TM-Acc2	0.83	0.797
	TM-Acc3	0.76	0.905
	TM-Acc4	0.75	0.917
	TM-Acc5	0.70	0.968
	TM-Acc6	0.71	0.957
	TM-order-Acc	0.69	0.974
Clock drawing and cube copying factor				.483
	CDd-Acc1	0.99	0.224
	CD-Acc2	0.96	0.392
	CD-Acc3	0.85	0.649
	CC-Acc1	0.63	0.886
Delayed recall factor				.473
	DRe-Acc1	0.95	0.790
	DR-Acc2	0.98	0.530
	DR-Acc3	0.97	0.611
	CCf-RT	0.88	0.49
	CD-RT	0.88	0.49
	TM-RT	0.89	0.45
	DR-RT1	0.95	0.25
	DR-RT2	0.89	0.47
Reaction time factor				.411
	RSg	0.77	0.60

^aEOmciSS: Efficient Online MCI Screening System.

^bThe 4 subscales were grouped based on the results of the confirmatory factor analysis.

^cTM: trail making.

^dCD: clock drawing.

^eDR: delayed recall.

^fCC: cube copying.

^gRS: reaction speed.