Table 4.

Partial correlation analyses among four indexes of KWISC-IV and ATA, adjusted for FSIQ and gender

Assessment	VCI	PRI	WMI	PSI
ATA visual
Omission errors	0.09	0.02	-0.11*	-0.02
Commission errors	0.07	-0.65	-0.04	0.02
Response time	0.10	0.06	0.03	-0.20***
Response time variability	0.11*	-0.04	<0.01	-0.09
ATA auditory
Omission errors	<0.001	0.75	-0.12*	<0.01
Commission errors	0.17**	-0.01	-0.26***	0.03
Response time	-0.10	0.58	0.14**	-0.07
Response time variability	0.03	0.04	-0.10	0.02

^*p<0.05,

^**p<0.01,

^***p<0.001.

ATA: Advanced Test of Attention, K-WISC-IV: Korean–Wechsler Intelligence Scale for Children, Fourth Edition, VCI: verbal comprehension index, PRI: perceptual reasoning index, WMI: working memory index, PSI: processing speed index, FSIQ: full-scale intelligent quotient